Glass specific gravity hydrometer by J W Towers, b

1920-1960 in Cheshire and Widnes

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Glass specific gravity hydrometer by J W Towers, bearingserial number 390. Lead shot weight an dpaper scale. In blue cardboard tube. Range 0.600 - 0.700.


Experimental Chemistry
Object Number:
gravity hydrometer
Laboratory of the Government Chemist

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