Image: Allegheny Observatory Photo Telescope circa 1914
Size of this preview: 446 × 599 pixels. Other resolutions: 179 × 240 pixels | 546 × 733 pixels.
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Description: Photograph of the Photographi Telescope located at the Allegheny Observatory near Pittsburgh, PA circa 1914
Title: Allegheny Observatory Photo Telescope circa 1914
Credit: "Popular Mechanics" Magazine April 1914
Author: Unknown authorUnknown author
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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