DC -- National Academy of Sciences Bldg:
[1] NAS_181213_01.JPG
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[2] NAS_181213_05.JPG
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[3] NAS_181213_09.JPG
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[4] NAS_181213_13.JPG
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[5] NAS_181213_19.JPG
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[6] NAS_181213_22.JPG
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[7] NAS_181213_25.JPG
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[8] NAS_181213_37.JPG
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