Two scientists working in front of an instrument tunnel at the Smithsonian Astronomical Observatory solar station, Mount Montezuma, Chile. In the background of the image, one man holds a cord whilst the other man works on the solar observation instruments (right). Photographed c. 1920.
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Creative#:
TOP27868683
Source:
達志影像
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RM
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須由TPG 完整授權
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No
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No
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Editorial use only
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