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Old USNO

$Looking NE, 4 June 1964 Old transit circle (8.5 inch) house is at extreme left. It was added on in 1868. The south wing (at the right) contained: 1. Passage Way to Main Building 2. Prime vertical and store room 3. Professor's office 4. 26-inch refractor 3 and 4 were added in 1873$ old10b.jpg

$Superintendent's quarter at left. Chronometer room and transit instrument mural circle room, main builidng with 9.5 refractor dome. Old transit instrument wing and transit cirlce building. (left to right) Looking SW.$ old10d.jpg