Swedish engineer, physicist, aeronaut and polar explorer who died while leading an attempt to reach the Geographic North Pole by hydrogen balloon (1854-1897). ALS in French, signed “S. A. Andree,” one page both sides, 5.5 x 8.75, September 15, 1895. Handwritten letter concerning the "possibility of using hydrogen in tubes," giving some specific requirements, prices, and related data. In fine condition.
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