Twaddell no 4 hydrometer

Made:
1900-1960

Glass Twaddell no 4 hydrometer. Lead shot weight in wax and paper scale. In brown cardboard box. Range 74 - 102.

Details

Category:
Experimental Chemistry
Object Number:
2005-584
type:
hydrometer and twaddell hydrometer
credit:
Laboratory of the Government Chemist