Mechanical counting device, c 1900.

Image number: 10327819

Mechanical counting device, c 1900.

Mechanical devices for counting the revolutions of machinery were developed from the mid 19th century. This is a decorative form of the device dating from around 1900.

Image number:
10327819
Credit:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 18:52
Image rights:
Science Museum