Six Twaddell hydrometers by J W Towers, Widnes. Le

Made:
1943 in Cheshire and Widnes

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Six Twaddell hydrometers by J W Towers, Widnes. Lead weights and paper scales. In wood box, possibly teak. No.1 equals range 0 - 24, No 2. equals range 24 - 48, No 3. equals range 48 - 74, No 4. equals range 74 - 102, No. 5 equals range 102 - 138 and No. 6 equals range 138 - 170.

Details

Category:
Experimental Chemistry
Object Number:
2005-442
type:
hydrometer
credit:
Laboratory of the Government Chemist