Adding machine

Adding machine, circular, stylus operated, 2 5/8 diameter mounted on 3' square metal plate, (German patent D.R.P.

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Adding machine, circular, stylus operated, 2 5/8 diameter mounted on 3' square metal plate, (German patent D.R.P.
Science Museum Group
© The Board of Trustees of the Science Museum

Adding machine, circular, stylus operated, 2 5/8" diameter mounted on 3" square metal plate, (German patent D.R.P. 335921)

Details

Category:
Mathematics
Object Number:
1954-656
type:
adding machines (stylus)
credit:
Mr L. Mercer