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2 results for: u.s naval observatory

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Professor H.E. Burton Looking through Telescope, Close-Up, U.S Naval Observatory, Washington DC, USA, National Photo Company, August 1929
GLS18A05_130

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...