Francis Signal Flasher, c1950
Francis Signal Flasher for ambulances, police cars and fire engines, 40-50 flashes per minute, flasher unit, c.1950.
- Materials:
- lead (metal) , metal (unknown) and plastic (unidentified)
- Object Number:
- 1997-2164/1
- type:
- emergency lights
- Image ©
- The Board of Trustees of the Science Museum