Conto adding machine for eight figures

Made:
1905-1910 in Zurich
maker:
J Aumund
Conto adding machine for eight figures, c. 1906, by J

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Conto adding machine for eight figures, c. 1906, by J
Science Museum Group
© The Board of Trustees of the Science Museum

Conto adding machine for eight figures, c. 1906, by J. Aumund, Zurich, in fitted box with guarantee

Details

Category:
Mathematics
Object Number:
1986-519
type:
calculating machine
credit:
Frei, P.