Glass hydrometer for battery acid and marked D P B

Made:
1920-1960 in Bakewell

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Glass hydrometer for battery acid and marked D P Battery Co Ltd, Bakewell. 172mm long. Range 1.125 - 1.250. Lead (embedded in white wax) weight and paper scale. Date of manufacture 1920 - 1960. In black cardboard tube.

Details

Category:
Experimental Chemistry
Object Number:
1997-1132
Materials:
case: cardboard, glass with lead weight and paper scale
type:
hydrometer
credit:
Unknown source
status:
Permanent collection

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