CATEGORIES
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EINSTEIN, Albert (1879-1950). German born scientist. He warned President Franklin D. Roosevelt about Nazi Germany’s attempt to develop an atomic bomb. He became a U.S. citizen in 1941. He is one of the pioneers of the Quantum Theory. Recipient of the 1921 Nobel Prize Physics.
First Day Cover commemorating Walter Reed. Large cachet of Walter Reed Bacteriologist and affied to this cover is a U.S. 5 cent Walter Reed postage stamp. Cancelled. First Day of Issue, Washington, D.C. Apr 17, 1940. Excellent signature “A. Einstein” above the cancellation. Cover in fine condition...........$3500.00
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