lewisfrancis:
GBT iPhone
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GBT Telephoto from a mile out
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Last Warning Sign for Zone One
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Warning Sign for Zone One
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NRAO Workshop I
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NRAO Workshop II
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NRAO Workshop III
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Green Bank's 140-ft Telescope
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Green Bank's 140-ft Telescope B&W
lewisfrancis:
18800022
lewisfrancis:
18800020
lewisfrancis:
18800020-2
lewisfrancis:
18800013
lewisfrancis:
18800011
lewisfrancis:
18790024
lewisfrancis:
18790022-2