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Framed Engravings of the Old Observatory

The engravings show 3 different views of the old Naval Observatory which was built in 1844. It was at this location that Asaph Hall discovered the moons of Mars in 1877. Located at 23rd and E Streets NW, the Observatory was at this location until moving to the present site in 1893. The headquarters of the Bureau of Medicine and Surgery is now in these buildings. The old Observatory buildings are on the National Register of Historic Places.
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