Hypsometer type alcoholometer cased, by Farrow and Jackson of London Hypsometer type alcoholometer cased
Clarke hydrometer in case with thermometer, collars and weights, incomplete with cuckoos, made by Dring and Fage, 248 and 20 Tooley Street, London, England, 1840-1920. Clarke hydrometer in case with thermometer 1840-1920
Sikes hydrometer, by Buss, 48 Hatton Garden, London, EC, England, 1901-1940. Sikes hydrometer 1901-1940