German chemist (1879-1968) who won the 1944 Nobel Prize for the discovery of nuclear fission. Group of four untranslated letters in German by Hahn, comprising one ALS and three TLSs, dated from 1915-1963. The first, an ALS on a postcard to his wife Edith, January 22, 1915, concerns neckwear. The second, a TLS to Professor F. L. Breusch, June 17, 1948, mentions "Nucleonics." The third, a TLS to Nobel Prize-winning physicist James Chadwick, mentions the papers of Ernest Rutherford, physicist Lise Meitner, and a recent book. The fourth, a TLS from March 1966, sends thanks for wishes on his 87th birthday. In overall fine condition.
