TLS in German, signed “W. Heisenberg,” one page, 8.25 x 11.75, Max Planck Institute letterhead, July 13, 1972. Letter to Eugen Langen, in part (translated): "Thank you for your copy of your contribution to the collection of writings honoring Professor Clive M. Schmitthoff. I was very interested in the influence of ideas from modern science on the legal problems of our time. During my schooldays, I occasionally went hiking together with a schoolmate Reinhart Kloepfer; but I do not know whether he is identical with the later president of the Chamber of Industry and Commerce. The father of my school friend was, as far as I remember, the owner or manager of a large timber shop in Munich." In fine condition.
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