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Subject Postage stamps Remove constraint Subject: Postage stamps Subject Chemists Remove constraint Subject: Chemists Subject American Chemical Society Remove constraint Subject: American Chemical Society

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    • 1951

    Cachet created by Fleetwood depicts "The Chemist" along with ACS logo and the tagline, "Maker of a Better Tomorrow." Stamp issued to commemorate the diamond jubilee of the American Chemical Society. Addressed to and…

    • 1976

    Cachet created by ArtCraft depicts a male and female chemist working in a laboratory setting, with text reading, "A Century of Modern Chemistry." Cover signed by Glen Seaborg.