Metal urinometer in cylindrical case
1830-1880
Urinometer for testing diabetes
1830-1920
Hydrometer, Bate's saccharometer
Saccharometer hydrometer
Hydrometer, Sikes, brass
Saccharometer, in case with weights and thermometers
Brass hydrometer in mahogany case
1840-1920
Sikes hydrometer, cased, by Loftus of London
Sikes hydrometer
Clarke hydrometer in case with collars and weights
1840-1920
Nicholson hydrometer in case with 2 thermometers
1850-1920
Metal urinometer in leather covered cylindrical case
1830-1900
Brass hydrometer with weights in wooden box
Brass hydrometer in case with weights
1801-1900
Hydrometer, metal, in shaped wooden case
1830-1920
Clarke hydrometer, in case with weights
Hydrometer, saccharometer, brass
1811-1812
Sikes hydrometer in case, by R.B. Bate, London
Hydrometer, by Dring and Fage
1801-1900
Sikes hydrometer
Sikes hydrometer, with thermometer, cased
Hydrometer in case by F. Harris, London, British
Brass Sikes hydrometer
Pocket Sikes hydrometer
Glass saccharometer
Hydrometer, in case
Hydrometer, saccharometer, brass
1801-1830
Brass hydrometer
Hydrometer, by Dicas of Liverpool
1801-1850
Clarke hydrometer in case with thermometer
1840-1920
Clarke hydrometer in case with weights and collars
1840-1920
Clarke hydrometer in case with weights
1840-1920
Urinometer set in case by Durrock
Sikes hydrometer
1901-1940