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