Calculating machine

| View Cart ⇗ | Info

A machine for adding and subtracting by mechanical means.

Galleries

Calculators

Source

Chandler B. Beach The New Student's Reference Work for Teachers Students and Families (Chicago: F.E. Compton and Company, 1909) 1:305

Downloads

TIFF (full resolution)

2400×2101, 901.8 KiB

Large GIF

1024×896, 201.3 KiB

Medium GIF

640×560, 104.2 KiB

Small GIF

320×280, 34.7 KiB