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You Searched ForStart Over You searched for: Department Archives Remove constraint Department: Archives Format Image Remove constraint Format: Image Language English Remove constraint Language: English Place United States Remove constraint Place: United States Rights Public Domain Mark 1.0 Remove constraint Rights: Public Domain Mark 1.0 Subject Science on postage stamps Remove constraint Subject: Science on postage stamps Subject First day covers (Philately) Remove constraint Subject: First day covers (Philately)
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.
First day cover created by Artmaster includes cachet depicting a 3D image of a nonexistent molecule. Stamp depicts chemical glassware. Envelope is signed by Herman S. Bloch, the inventor of the catalytic converter.
Cachet and stamp depict Albert Einstein. Cachet also depicts Einstein's formula for mass-energy equivalence and is from the Prominent Americans Series. The postmark is from Princeton, New Jersey.
Cachet depicts two chemists working in a laboratory.