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1.
The 200" telescope, Palomar Mountain, California
2.
200-inch Hale telescope
3.
The 200-inch Hale telescope of the Mount Wilson and Palomar Observatories
4.
The dome of Palomar Observatory's 200" telescope is shown here on the morning after a winter storm
5.
The honeycombed structure of the 200" mirror sets waiting for the thin aluminum coating that will give it its high reflectivity
6.
Interior view of Palomar Mountain Observatory, showing details of world's largest telescope
7.
Largest (200-inch) mirror in the world
8.
Palomar Mountain, California, 200" observatory - assistant seated at control panel with the great mirror in the background
9.
Palomar Mountain, California, 200" observatory - observer is seated at the Casse-grain focus ready to insert the photographic...
10.
Palomar Mountain, California, 200" observatory - the observer is adjusting the photographic plate
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Travel Postcards of Charles Blumsack
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Leslie Jones Collection
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19th Century American Trade Cards
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Benjamin Smith Lyman Papers, 1831-1921 (Bulk: 1851-1915)
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