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Vinony

Instruments and publications of the United States Naval Observatory

...Pub. by authority of the Hon. Secretary of the Navy. Rear-Admiral C.H. Davis, Superintendent.

by United States Naval Observatory

Cover of Instruments and publications of the United States Naval Observatory

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United States Naval ObservatoryAstronomical instruments
Instruments and publications of the United States Naval Observatory by United States Naval Observatory — book · Vinony