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Photography by Dan Quinn
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Helen Quinn USA Scrapbook
Taken
28-Aug-17
Visitors
19
7
of
54
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Photo Info
Dimensions
1945 x 2732
Original file size
3.29 MB
Image type
JPEG
Color space
sRGB
Date modified
28-Aug-17 11:21
Helen Quinn at Stanford
Helen at the blackboard in 1975 or 1976, at the time she and Roberto Peccei were working on Peccei-Quinn Symmetry.
CC0: Creative Commons
