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airplane

canyon

canyons

cave

colorado

colorado springs

entrance

halftone photomechanical prints

airplane view

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Airplane view of Manitou Canyon and entrance to Cave of the Winds, Colorado Springs, Colo.

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, Colorado Springs, Colo.

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