1947 Curta Mechanical Pocket Calculator

 MIThril, a borglab production. Richard W. DeVaul, Jonathan Gips, Michael Sung, Sandy Pentland

portable mechanical calculation
The Curta, which looks similar to a small metal pepper-mill, performs mathematical calculations mechanically using no electric or electronic parts.

Rumors say that Mr. Curt Herzstark of Austria secretly developed the Curta while imprisoned in a German concentration camp. This may be true as Herzstark was imprisoned at Buchenwald until the camp was liberated in April, 1945 by Americans. http://www.public.usit.net/rfurr/cu-bckup.htm http://www.webcom.com/calc/

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