Mechanical counting device, c 1900.
Image number: 10327819
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
