Urinometer, mercury in glass
1830-1900
Urinometer with test tube in cylindrical cardboard case
1830-1900
Urinometer set
Hydrometer, glass, for diabetes, in leather case
Glass Baume hydrometer
Saccharometer, in case
Glass hydrometer in case
Hydrometer, cased
Hydrometer, mercury in glass lactometer, with case
1830-1920
Urinometer
Hydrometer saccharometer
1840-1930
Hydrometer made by Tissier, French, 1830-1920
1830-1920
Glass hydrometer in case by James Wooley
Glass hydrometer with mercury, in cardboard case
Hydrometer, broken, with leather case
1830-1920
Hydrometer, cased, by Brewer Freres
Glass hydrometer in cardboard case, German
Sikes alcoholometer
Twaddle hydrometer
1850-1950
Urinometer with measuring cylinder in leather covered cylindrical case
1830-1900
Urinometer with measuring cylinder
1830-1900
Urinometer, mercury in glass
1850-1930
Urinometer with measuring cylinder in leather covered cylindrical case
1830-1900
Hydrometer, London, England, 1850-1920
1850-1920
Glass hydrometer in wooden case
1871-1906
Hydrometer, with wooden case
1830-1930
Hydrometer, alcoholmeter, glass
Glass hydrometer with mercury
1859-1872
Glass lactometer, England, 1875-1900
1875-1900
Hydrometer, glass
1801-1900
Hydrometer and metal case, French(?), 1830-1920
1830-1920
Hydrometer, cased, by Kemp and Co. of Edinburgh
Acetometer, cased, by J. and P. Taylor of London
Hydrometer, Baume, glass
1801-1900
Glass hydrometer in metal case
Glass urinometer for diabetes, in case
Glass hydrometer in metal case
Hydrometer, glass, in metal case
Glass and mercury hydrometer
1830-1920