The 1000-mile tree, Weber Canon.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
![Golden from the C. C. [Central City] Round House.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvZ29sZGVuLWZyb20tdGhlLWMtYy1jZW50cmFsLWNpdHktcm91bmQtaG91c2UtYzRiNjYxLTY0MC5qcGc%3D/40/23/webp "Golden from the C. C. [Central City] Round House.")
Golden from the C. C. [Central City] Round House.
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
Below the falls. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Seven Falls, Cheyenne Canon. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Rainbow falls, Manitou. - Sterescope Card, Colorado
Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.
The "What is it" near Sherman. - stereoscopic view, public domain phot...
Wyoming 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 asse... More
![Arch at Deer Creek, Platte Canon [Canyon].](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvYXJjaC1hdC1kZWVyLWNyZWVrLXBsYXR0ZS1jYW5vbi1jYW55b24tNjE0NzZmLTY0MC5qcGc%3D/40/22/webp "Arch at Deer Creek, Platte Canon [Canyon].")
Arch at Deer Creek, Platte Canon [Canyon].
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
General view of Central City, Colo.
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
Seven Falls, Cheyenne Canon. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
From Black Hawk to Central City.
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
Train leaving Central, on Wonder R.R.
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
Railroad above the clouds. - 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
Iron bridge over Black Hawk. - Sterescope Card, Colorado
Picryl description: Public domain image related to an industrial revolution, industry history, factory building, free to use, no copyright restrictions image.
The Bobtail mill, at Black Hawk, Colo.
Picryl description: Public domain image related to an industrial revolution, industry history, factory building, free to use, no copyright restrictions image.
Donkey train, Ute Pass, near Manitou.
Picryl description: Public domain image of a rural landscape, horses, horse riding, farm animals, farmers, livestock, free to use, no copyright restrictions image.
Cascade & falls, Ogden Canon, Utah. Ogden Utah
Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.
Baths at Idaho. - 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
Mountain city bridge. - 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
Deep Cut and Loop. - 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
Donkey train, at Georgetown, Colorado. - 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
Below the Smelters. - 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
Leaning Tower, Williams Canon. - 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 Tabernacle, Salt Lake City. Stereoscope card of Salt Lake City Uta...
Utah 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
From Black Hawk to Central City.
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
The forks of creek, Clear Creek.
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
Baths at Idaho. - 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 Tabernacle, Salt Lake [City].](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvaW50ZXJpb3Itb2YtdGFiZXJuYWNsZS1zYWx0LWxha2UtY2l0eS1lYTBmZTgtNjQwLmpwZw%3D%3D/40/23/webp "Interior of Tabernacle, Salt Lake [City].")
Interior of Tabernacle, Salt Lake [City].
Utah 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
Silver Plume. - 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
![Castle Rock reflection, Golden Cold [City].](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvY2FzdGxlLXJvY2stcmVmbGVjdGlvbi1nb2xkZW4tY29sZC1jaXR5LTYzNDdlMC02NDAuanBn/40/23/webp "Castle Rock reflection, Golden Cold [City].")
Castle Rock reflection, Golden Cold [City].
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
Railroad above the clouds. - 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
Railroad above the clouds. - 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
Inspiration Point. - Sterescope Card, Colorado. NYPL Collection.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Double Curve, Clear Creek Canon. - 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
Seven Falls, Cheyenne Canon. - 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
Deer, killed on the line of U.P.R.R.
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
Hydraulic mining, Idaho. Idaho. 19th cenrury stereoscope card.
Idaho 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 assemb... More
The "What is it" near Sherman. - Public domain photogrpaph
Wyoming 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 asse... More
Dale Creek Bridge, near Sherman. Wyoming stereoscope card, 19th centur...
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
![Castle Rock reflection, Golden Cold [City].](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvY2FzdGxlLXJvY2stcmVmbGVjdGlvbi1nb2xkZW4tY29sZC1jaXR5LTYzOTBhNy02NDAuanBn/40/23/webp "Castle Rock reflection, Golden Cold [City].")
Castle Rock reflection, Golden Cold [City].
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
![Golden from the C. C. [Central City] Round House.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvZ29sZGVuLWZyb20tdGhlLWMtYy1jZW50cmFsLWNpdHktcm91bmQtaG91c2UtOWE3MDAzLTY0MC5qcGc%3D/40/22/webp "Golden from the C. C. [Central City] Round House.")
Golden from the C. C. [Central City] Round House.
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
Black Hawk. - 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
Wind cave. - 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
Tabor Grand Opera House, Denver. - 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
Gen. Grant's train, Royal Gorge. - 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 hot baths, at Idaho Springs.
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
Idaho from the East. - 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
Donkey train, Ute Pass, near Manitou.
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
Hydraulic mining, Idaho. Idaho. 19th cenrury stereoscope card.
Idaho 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 assemb... More
![Interior of Tabernacle, Salt Lake [City].](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvaW50ZXJpb3Itb2YtdGFiZXJuYWNsZS1zYWx0LWxha2UtY2l0eS04YzAwMmMtNjQwLmpwZw%3D%3D/40/23/webp "Interior of Tabernacle, Salt Lake [City].")
Interior of Tabernacle, Salt Lake [City].
Utah 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
Railroad above the clouds. - 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
Below the falls, Clear Creek Canon.
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Pyramid Rock, Echo Canon, Colorado. - 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
General view of Glen Eyrie. - 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
Railroad above the clouds. - 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
Iron bridge over Black Hawk. - 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 forks of creek, Clear Creek.
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
Below the Smelters. - 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
Gen. Grant's train, Royal Gorge. - 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 Bath of Venus, on the Ute Pass.
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
Rainbow Falls in winter, Manitou. - Sterescope Card, Colorado
Picryl description: Public domain image from Robert Dennis collection of stereoscopic prints, free to use, no copyright restrictions.
Three Ute Indian braves. Indians of North America. Sterescope 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 assembled it over a period of mo... More
Below the Smelters. - 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
Reflection in Green Lake. - 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
From Black Hawk to Central City.
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
Arch at Deer Creek. - 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
Below the falls. - 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
Double curve, Grand Canon. - 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 1000-mile tree, Weber Canon.
Utah 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
Three Ute Indian braves. Indians of North America. Sterescope Card.
Picryl description: Public domain image from Robert Dennis collection of stereoscopic prints, free to use, no copyright restrictions.
Bridal Veil Fall, in summer. Sterescope Cards NYPL Collection.
Picryl description: Public domain image of a waterfall, cascade, water stream, free to use, no copyright restrictions.
Reflection in Green Lake. - 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
Arch at Deer Creek. - 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
General view of Central City, 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
Inspiration Point. - Sterescope Card, Colorado. NYPL Collection.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Donkey train, at Georgetown, Colorado. - Sterescope Card, Colorado
Picryl description: Public domain image of an 18th-19th century military conflict, armed forces, infantry, militia, free to use, no copyright restrictions.
Donkey train. - Sterescope Card, Colorado. NYPL Collection.
Picryl description: Public domain image of armed forces, military conflict, conscription, infantry, free to use, no copyright restrictions.
Gen. Grant's train, Royal Gorge. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Returning from the summit, Pikes Peak.
Picryl description: Public domain image of a mountain pass, summit, rocks, mountains, free to use, no copyright restrictions.
The Devil's Gap, Weber Canon. 19th century stereoscope card. Utah.
Utah 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
Reflection in Green Lake. - 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
Spring Street. - 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
Spring St., Central. - 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
Wind cave. - 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
Georgetown, Colo., looking north. - 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
Donkey train, at Georgetown, Colorado. - 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
General view of Glen Eyrie. - 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
Double curve. - 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
The Devil's Gap, Weber Canon. 19th century stereoscope card. Utah.
Utah 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
The 1000-mile tree, Weber Canon.
Utah 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
Hanging Rock, near Echo. U.P.R.R. 19th century stereoscope card. Utah.
Utah 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
End of Switchback, on the Wonder R.R.
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
Spring Street. - 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
"The Gate." Garden of the Gods.
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
Returning from the summit, Pikes 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
Castle "Barkalow", Green River. 19th century stereoscope card. Utah.
Utah 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
The Switchback, on Wonder Rail Road.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Below the falls. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Tabor Grand Opera House, Denver. - Sterescope Card, Colorado
Picryl description: Public domain image of a department store, commercial building, downtown, shopping center, 19th-20th century, free to use, no copyright restrictions.
Gen. Grant's train, Royal Gorge. - Sterescope Card, Colorado
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Hydraulic mining, Idaho. Idaho. 19th cenrury stereoscope card.
Idaho 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 assemb... More