Glass lactometer by unknown maker

Glass lactometer by unknown maker. 133mm long. Range W-1-2-3-M-C, equally divided. Mercury weight and paper scale. In black cardboard tube, 1900 - 1960.

Details

Category:
Experimental Chemistry
Object Number:
1997-1083
Materials:
glass, mercury, paper (fibre product) and cardboard
type:
hydrometer and lactometer
credit:
-