Hydrometer, Sikes, brass
1801-1900
Three hydrometers, 1700-1730.
1700-1730
Brass Baume hydrometer, French(?), 1830-1920
Hydrometer, Sikes, brass
1801-1900
Hydrometer, brass, in wooden case
1801-1895
Ivory hydrometer, mid 18th century
1730-1780
Hydrometer, Sikes, brass
Twaddle Hydrometers
1950-1970
Twaddell's hydrometer
1900-1910
Metal hydrometer
1720-1760
Alcohol hydrometer
1701-1800
Brass hydrometer in mahogany case
1840-1920
Nicholson hydrometer in case with 2 thermometers
1850-1920
Hydrometer, Sikes, brass
1801-1900
Clarke export hydrometer
1701-1800
Glass hydrometer
Hydrometer, silver, in shaped wooden case
Hydrometer for use as diabetes-testing uriameter
1930-1960
Hydrometer for use as diabetes-testing uriameter
1945-1950
Hydrometer, in case
Glass Baume hydrometer
Clarke hydrometer in case with collars and weights
1840-1920
Hydrometer, silver, probably Swiss
1801-1850
Hydrometer, by Dring and Fage
1801-1900
Hydrometer, with wooden case
1830-1930
Hydrometer, cased
Glass Cartier hydrometer
Hydrometer
Glass hydrometers
1860-1900
Hydrometer, brass, in wooden case
1801-1900
Hydrometer and thermometer, Baume
Glass hydrometer in case
Clarke's Alcohol Hydrometer, 1767-1800
1804-1844
Hydrometer, glass and metal
1801-1900
Hydrometer, brass, spherical front bulb
1860-1900
Alcoholometer, Gay Lussac
1830-1920
Clarke hydrometer, in case with weights
Baume hydrometer, glass, in case
Hydrometer, in case, French(?), 1801-1900
1801-1900
Hydrometer, Sikes, brass
1801-1900
Hydrometer, brass, in wood case
1801-1900
Glass hydrometer with mercury, in cardboard case
Twaddle's glass hydrometer
Hydrometer and accessories in wooden case
Glass hydrometer with mercury
1859-1872
Glass hydrometer
Hydrometer, plastic, for diabetes
Hydrometer, Richardson, brass
1801-1900
Hydrometer in case by F. Harris, London, British
