Comptometer - key-driven mechanical calculator showing numbered button keys in monochrome
RMID:Image ID:ED4KYX
Image details
Contributor:
Tony Smith / Alamy Stock PhotoImage ID:
ED4KYXFile size:
30.2 MB (750.8 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
3864 x 2728 px | 32.7 x 23.1 cm | 12.9 x 9.1 inches | 300dpiDate taken:
20 December 2014Location:
EnglandMore information:
The comptometer was the first commercially successful key-driven mechanical calculator