Planimeter, Ott 1945

A (compensations polar) planimeter made by Ott from Kempten. Ott (1873 till 1990) was one of the most famous producers of scientific instruments. The planimeter is probably from 1945 and is used to compute the area of unevenly formed areas. This is type 30.115 with a magnifying glass. The planimeter is numbered134283. The original manual is included. The box is lined with red velvet.


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