TIM calculating machine, c 1916.

TIM calculating machine, c 1916.
2 8 c m
40cm
actual image size: 32cm x 20cm

Description

TIM ('Time is Money') double counting mechanism machine no 13521 with metal cover, made by L Spitz & Co, Berlin. This stepped drum calculator mechanism machine was first introduced in about 1907 and was the first type of four-function calculator. It performs addition, multiplication, division and subtraction, has eight entry setting sliders, nine places in the revolution counter, with 15 places in the results register on each slide.

Image Details

Image Ref.
 
10426703

© Science Museum / Science & Society Picture Library

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas