Depicts a chemist with test tube and flask, as well as the chemical structure of a carboxyl group.
|Place of publication|
|Original file type||TIFF|
|View in library catalog|
Stretti, Mario. “Czechoslovakian Postage Stamp of a Chemist at Work.” Czechoslovakia, circa 1954. Witco Stamp Collection, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/mk61rh152.
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