Key switch
- maker:
- Muirhead and Company Limited
This image is released under a CC BY-NC-SA 4.0
Licence
License this image for commercial use at Science and Society Picture Library
LicenseKey switch, 'make before break', type 7A, by Muirhead and Co
Science Museum Group
© The Board of Trustees of the Science Museum
Key switch, 'make before break', type 7A, by Muirhead and Co. Ltd., and box
Details
- Category:
- Telecommunications
- Object Number:
- 1989-1045
- Measurements:
-
key: width 35 mm
height 50 mm
overall: depth 115 mm
- type:
- keys
- credit:
- Muirhead Vactric Components Limited
