Joseph Long

occupation:
Hydrometer instrument maker, Mathematical instrument maker, Optical instrument maker
Nationality:
British

Traded at 20 Little Tower St. (1821-84) & 43 East Cheap (1885-1936) both London, England

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Hydrometer, by Dring and Fage

Six-fold 60-inch folding excise gauging rule by Joseph Long

Four-fold 48-inch folding excise gauging rule by Joseph Long

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Alcoholmeter (Manley's patent) made by Joseph Long

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