1) 200" telescope (2)

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  1) Various views of 200" telescope (5)

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  7) 200" telescope exhibit in Chicago (1)

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  "Memorandum on Coudé Spectrograph for 200-Inch Telescope."

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  "Memorandum on Damping of Vibration in 200 Inch Telescope."

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  Record books of 200-inch telescope mirror tests

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  "Memorandum on Use of Stellar Interferometer on 200-Inch Telescope."

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