Watkin's time thermometer
Mercury thermometer calibrated in minutes for dish and tank development enclosed in glass envelope containing scale and developer instructions with a metal cap. Watkins Meter Co. c.1910
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/2833
- type:
- thermometer
- credit:
- The Kodak Collection at the National Media Museum, Bradford
