Glass Twaddell's No 3 hydrometer by unknown maker

Made:
1900-1950

Glass Twaddell's No 3 hydrometer by unknown maker. 247mm long. Range 48 - 74. Mercury weight and paper scale. In brown cardboard tube with tinplate ends, 1900 - 1950.

Details

Category:
Experimental Chemistry
Object Number:
1997-1066
Materials:
glass, with mercury weight and paper scale and case: cardboard and tinplate
type:
hydrometer
credit:
Unknown source