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Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's Peak.

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's P...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior of U.S. Signal Station, Mt. Washington.

Interior of U.S. Signal Station, Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

U.S. Signal station, elevation 14,216 feet.

U.S. Signal station, elevation 14,216 feet.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal Mountain Inn., Chattanooga, Tenn., Vintage Postcard by Detroit Publishing Co.

Signal Mountain Inn., Chattanooga, Tenn., Vintage Postcard by Detroit ...

Picryl description: Public domain photo of vintage Tennessee postcard, free to use, no copyright restrictions image.

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.

Civil War stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who as... More

View from Signal Mountain, near, Chattanooga, Tenn.

View from Signal Mountain, near, Chattanooga, Tenn.

Public domain photograph of a postcard, landscape view, free to use, no copyright restrictions image - Picryl description

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Frost feathers on Signal Station, Mt. Washington.

Frost feathers on Signal Station, Mt. Washington.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station and observatory. - Sterescope Card, Colorado

U.S. Signal station and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Mr. Clark's house occupied by editor of Signal.

Mr. Clark's house occupied by editor of Signal.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal station, Pikes Peak. - Sterescope Card, Colorado

Signal station, Pikes Peak. - Sterescope Card, Colorado

Public domain image related to an industrial revolution, industry history, factory building, 19th century, free to use, no copyright restrictions image - Picryl description.

Interior of U.S. Signal Station, Mt. Washington.

Interior of U.S. Signal Station, Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station, and observatory. - Sterescope Card, Colorado

U.S. Signal station, and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Frost feathers on Signal Station, Mt. Washington.

Frost feathers on Signal Station, Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Mr. Clark's house occupied by editor of Signal.

Mr. Clark's house occupied by editor of Signal.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Mr. Clark's house occupied by editor of Signal.

Mr. Clark's house occupied by editor of Signal.

Iowa stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembl... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

U.S. Signal station, and observatory. - Sterescope Card, Colorado

U.S. Signal station, and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station, and observatory. - Sterescope Card, Colorado

U.S. Signal station, and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal station, Pikes Peak. - Sterescope Card, Colorado

Signal station, Pikes Peak. - Sterescope Card, Colorado

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's Peak.

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's P...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station, elevation 14,216 feet.

U.S. Signal station, elevation 14,216 feet.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal station, Pikes Peak. - Sterescope Card, Colorado

Signal station, Pikes Peak. - Sterescope Card, Colorado

Public domain image related to an industrial revolution, industry history, factory building, 19th century, free to use, no copyright restrictions image - Picryl description.

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's Peak.

5th cascade, Bear Canon [Canyon], on the U.S. Signal Trail to Pike's P...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station, elevation 14,216 feet.

U.S. Signal station, elevation 14,216 feet.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

Public domain reproduction of illuminated manuscript page, free to use, no copyright restrictions image - Picryl description

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Signal station. - Sterescope Card, Colorado. NYPL Collection.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

U.S. Signal station, and observatory. - Sterescope Card, Colorado

U.S. Signal station, and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Mt. Washington Signal Station. New Hampshire in 19th century. Stereoscope card.

Mt. Washington Signal Station. New Hampshire in 19th century. Stereosc...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.
Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Frost feathers on Signal Station, Mt. Washington.

Frost feathers on Signal Station, Mt. Washington.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.

Civil War stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who as... More

U.S. Signal station and observatory. - Sterescope Card, Colorado

U.S. Signal station and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior of U.S. Signal Station, Mt. Washington.

Interior of U.S. Signal Station, Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Frost feathers on Signal Station, Mt. Washington.

Frost feathers on Signal Station, Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Signal Station, Summit of Mt. Washington.

Signal Station, Summit of Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Signal tower, Jacksonville, Fla. 19th cenrury stereoscope card.
Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U.S. Signal station, elevation 14,216 feet.

U.S. Signal station, elevation 14,216 feet.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

New Hampshire stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

U.S. Signal station, Pikes Peak. - Sterescope Card, Colorado

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to Pike's Peak.

Laguna Alta. 10,175 feet above sea level, on the U.S. Signal Trail to ...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Signal station, summit of Pike's Peak.

Signal station, summit of Pike's Peak.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

U.S. Signal station and observatory. - Sterescope Card, Colorado

U.S. Signal station and observatory. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

The Great Signal Rock, Summit of Lookout Mt. Chattanooga, Tenn.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

U.S. Signal station, elevation 14,216 feet.

U.S. Signal station, elevation 14,216 feet.

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Interior Signal Station on Mt. Washington.

Interior Signal Station on Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Interior of U.S. Signal Station, Mt. Washington.

Interior of U.S. Signal Station, Mt. Washington.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Government Signal Station, Mt. Washington. New Hampshire in 19th century. Stereoscope card.

Government Signal Station, Mt. Washington. New Hampshire in 19th centu...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

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