c. 1991
A postcard format is printed on the verso of this object. The caption/title of the image is printed on the verso at u.l.: Museum of SCIENCE, Boston USA
plate: 10 x 14.3 cm (3 15/16 x 5 5/8 in.) sheet: 10.6 x 14.8 cm (4 3/16 x 5 13/16 in.)

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