Glass IPT D hydrometer by unknown maker, and bearing serial number W.153. 146mm long. Range 1.000 - 1.050. Mercury weight and paper scale. In brown cardboard tube with screw-on tinplate cap, and marked 'Bush Boake Allen Ltd, Ash Grove Hackney London E8', 1930 -1980. Hydrometer index 275.
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1997-1080
- Materials:
- glass, mercury, paper (fibre product), cardboard and tinplate
- type:
- hydrometer
- credit:
- -