Glass Twaddell No 2 hydrometer by unknown maker

Made:
1900-1960

Glass Twaddell No 2 hydrometer by unknown maker. Range 24 - 48. 172mm long. Mercury weight and paper scale. In cardboard tube, 1900 - 1960.

Details

Category:
Experimental Chemistry
Object Number:
1997-1133
Materials:
glass, mercury, paper (fibre product) and cardboard
type:
hydrometer
credit:
Unknown source