Clarke's Hydrometer (c. 1755)
1755
Lactometer or Milk Tester (dated 1869) by MOTTASHEAD & CO
1869
Glass brinometer by unknown maker
1900-1950
Glass specific gravity hydrometer by unknown maker
1860-1980
Carnardine's saccharometer by Mayer and Meltzer
Clarke's export hydrometer in box.
Glass hydrometer made in Germany
1870-1914
Ivory Hydrometer (c. 1700-30)
1700-1730
Fletcher's thermohydrometer
Glass hydrometer by unknown maker
1860-1980
Hydrometer set in wooden case by J.F. Van Deene
1882, 1899
Sikes' hydrometer by Loftus
Brass saccharometer with thermometer by Bass
Fletcher's thermohydrometer
Fletcher's thermohydrometer
Specific gravity hydrometer
Specific gravity hydrometer
Ivory Hydrometer (c. 1700-30) stem divided 1-12; b
1700-1730
Hydrometer, France, 1810-1820
1810-1820
Ivory hydrometer 5 1/2" long
1700-1730
Early hydrometer in silver
1801-1950
Glass specific gravity hydrometer with mercury weight and paper scale
Specific gravity hydrometer
Nicholson hydrometer by Philip Harris Ltd
1943-1960
Allan's Saccharometer (c. 1840) signed P STEVENSON MAKER EDINBURGH
1840
Salinometer, nickel plated
1854-1877
Towers' Streamline Hydrometer
1920-1930
Metal urinometer in cylindrical case
1830-1880
Urinometer for testing diabetes
1830-1920
Urinometer in leatherette covered cylindrical case
1830-1920
Urinometer, glass, in leather case
1901-1930
Urinometers for diabetes
1850-1896
Glass urinometer for diabetes
1940-1960
Glass urinometer in cylindrical case
1850-1950
Glucometer, London, England, 1885-1936
1885-1936
Urinometer set
Urinometer of vulcanite in tubular case
1890-1910
Hydrometer, glass, for diabetes, in leather case
Gilt customs and excise standard no 1 (Sikes) hydrometer by J J Hicks
1870-1930
Urinometer, glass, with ivory scale
1901-1940
Glass hydrometer by Oertling
1880-1940
Hydrometers with jar and thermometer
Glass hydrometer by T A Reynolds and Co., London
Glass hydrometer by A J Reynolds, Barnsbury
Glass hydrometer by T A Reynolds and Co., London
Glass Baume hydrometer for heavy liquids
Glass 'streamline' hydrometer marked J W Towers Ltd
1930-1960
Glass hydrometer for battery acid and marked D P Battery Co Ltd
1920-1960
Glass hydrometer for battery acid and marked D P Battery Co Ltd
1920-1960
Glass hydrometer for battery acid and marked D P Battery Co Ltd
1920-1960