Glass 'streamline' hydrometer marked J W Towers Ltd, Widnes, and bearing serial number 6332. 201mm long. Range 1.250 - 1.300. Lead (embedded in red wax) weight and paper scale. In dark blue cardboard tube, 1930 - 1960.
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1997-1093
- Materials:
- glass, lead (metal), paper (fibre product) and cardboard
- type:
- hydrometer
- credit:
- Unknown source