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Airplane view of Manitou Canyon and entrance to Cave of the Winds, Col...
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
Airplane view of Manitou Canyon and entrance to Cave of the Winds, Col...
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description
Airplane view of Manitou Canyon and entrance to Cave of the Winds, Col...
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