German physicist (1879-1960) who won the 1914 Nobel Prize in Physics for his research related to the diffraction of X-rays by crystals. ALS in German, signed “M. Laue,” penned on the reverse of a glossy 5.5 x 3.5 postcard of the Czech ski resort town of Spindleruv Mlyn, postmarked March 16, 1932. Untranslated letter to Princeton professor Rudolf Ladenburg. In fine condition, with postal impressions to the picture side of the postcard.
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