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