Danish physicist (1885–1962) who was awarded the 1922 Nobel Prize in Physics for his theory of atomic structure. Scarce vintage 3.5 x 5.5 postcard photo featuring an image of Alfred Nobel, signed in fountain pen, ”Niels Bohr.” In fine condition, with a 1948 postal cancellation lightly affecting the beautiful signature, and a Lionel Aucoin stamp on the reverse. Pre-certified PSA/DNA and RR Auction COA.
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