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Language English Remove constraint Language: English Subject Special relativity (Physics) Remove constraint Subject: Special relativity (Physics) Subject Einstein, Albert, 1879-1955 Remove constraint Subject: Einstein, Albert, 1879-1955

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    • 1956

    Stamp depicts Albert Einstein and the the equation of mass-energy equivalence (E=MC2). Einstein has been featured on numerous stamps from around the world. His first appearance on a stamp is believed to be on this…

    • 1966

    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.