Metal plate, 3 1/2" square, showing use of thermocolour No. 30.
Details
- Category:
- Heat
- Object Number:
- 1953-374
- Materials:
- metal (unknown)
- type:
- metal plate
- credit:
- Allied Colloids (Bradford) Ltd.
Metal plate, 3 1/2" square, showing use of thermocolour No. 30.
