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Low angle view of main entrance with bronze statue of Greek God Apollo and dome, Nice Observatory,
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Low angle view of main entrance with bronze statue...

McDonald Observatory near Fort Davis, Texas, USA, Russell Lee, U.S. Farm Security Administration,
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McDonald Observatory near Fort Davis, Texas, USA, ...

Observatory, Harvard College, 1900
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Observatory, Harvard College, 1900

Observatory, Amherst College, 1908
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Observatory, Amherst College, 1908

Hipparchus in the Observatory of Alexandria, Egypt, Illustration, Cyclopaedia of Universal History, Volume 1, The Ancient World, by John Clark Ridpath, the Jones Brothers Publishing Company, 1885
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Hipparchus in the Observatory of Alexandria, Egypt...

Professor H.E. Burton Looking through Telescope, Close-Up, U.S Naval Observatory, Washington DC, USA, National Photo Company, August 1929
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Professor H.E. Burton Looking through Telescope, C...

Professor H.E. Burton Looking through Telescope, U.S Naval Observatory, Washington DC, USA, National Photo Company, August 1929
GLS18A05_131

Professor H.E. Burton Looking through Telescope, U...

Dr. David Todd Looking Through Telescope, Georgetown Observatory, Washington DC, USA, National Photo Company, August 1924
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Dr. David Todd Looking Through Telescope, Georgeto...