Conroy photometer in black box
Conroy photometer in black box, Everett Edgcumbe and Company Ltd., London, 1920-1946.
Details
- Category:
- Optics
- Object Number:
- 1946-318
- Materials:
- leather, cardboard and brass (copper, zinc alloy)
- Measurements:
-
overall: 56 mm x 95 mm x 62 mm, .223kg
- type:
- photometer
- credit:
- Trotter, A.P.
