Glass specific gravity hydrometer by unknown English maker. 187mm long. Range 0.750 - 0.800. Mercury weight and paper scale. In faded blue cardboard tube, 1900 -1960. Hydrometer Index 332.
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1997-1112
- Materials:
- glass, mercury, paper (fibre product) and cardboard
- type:
- hydrometer
- credit:
- Unknown source