Layton's improved arithmometer no.1624

Made:
1900-1920 in London
Layton's improved arithmometer no

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Layton's improved arithmometer no
Science Museum Group
© The Board of Trustees of the Science Museum

Layton's improved arithmometer no.1624, capacity 7 x 7 = 12 figures, with instruction sheet

Details

Category:
Mathematics
Object Number:
1962-211
type:
calculating machine (stepped drum)
credit:
Commonwealth Institute