Five ink signatures of four notable recipients of the Nobel Prize in Chemistry on individual off-white cards ranging in size from 3.5 x 2.25 to 5 x 3, including: "Hans Fischer, Munchen, 10. 12. 1930," "Irving Langmuir, Dec. 12, 1932," "Linus Pauling" (2), and "Harold Clayton Urey, March 8, 1938." Each signature is affixed to a larger sheet with a photo of the respective scientist. In overall fine condition.
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