Engineer and inventor (1870–1960) best known for the invention of neon lighting. TLS in French, signed “G. Claude,” one page, 5 x 8, personal letterhead, March 9, 1928. Untranslated letter to Lucien Bance, with Claude adding one sentence in his own hand. In fine condition, with some light soiling to left edge. RRAuction COA.
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