Glass hydrometer by unknown (German) maker. 274mm long. Range 1.400 -1.500. Mercury weight and paper scale. In mottled-black cardboard tube, 1870 - 1940.
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1997-1090
- Materials:
- glass, mercury, paper (fibre product) and cardboard
- type:
- hydrometer
- credit:
- -