Clarke's Hydrometer (c. 1755)
1755
Hydrometer jar of thick glass
1800-1830
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
Two hydrometer spheres in metal box.
Hydrometer, range 3.0-3.2
Glass hydrometer by Oertling
1880-1940
Hydrometers with jar and thermometer
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
Hydrometer
1900-1983
Glass hydrometer marked Baird & Tatlock
1945-1980
Hydrometer by A. Reballio
1851-1900
Wine and spirit analyser by Joseph Long
Hydrometer in case with weights
1820
Hydrometer
1900-1983
Four glass hydrometers made in Germany
1870-1914
Four glass excise hydrometers by Oertling
1870-1940
Glass hydrometer by J Hicks
1880-1940
Two glass excise hydrometers by Oerling
1870-1940
Wine and beer glass hydrometer, 1994.
1994
Glass specific gravity hydrometer
circa 1910
Clarke's export hydrometer in box.
Glass hydrometer made in Germany
1870-1914
Dicas hydrometer, by Dicas of Liverpool, c. 1800
1801-1820
Hydrometer made by T. Gill
circa 1800
Hydrometer for heavy liquids
Ivory Hydrometer (c. 1700-30)
1700-1730
Brass hydrometer set
1810-1830
Hydrometer by DAVIS OF LEED.
Fletcher's thermohydrometer
Glass hydrometer
1900
Glass Gay-Lussac hydrometer by Hicks
1880-1940
Glass 'Technico' hydrometer
1860-1980
Glass 'diabetes' hydrometer by unknown maker
1870-1940
Glass specific gravity hydrometer marked Gallenkamp
1930-1980
Gilt hydrometer by Dring and Fage
1930-1970
Glass 'Technico' hydrometer. 192mm long. Range 1.700 - 1.750. Lead weight and paper scale. In dark blue cardboard tube
1930-1980
Glass 'Technico' hydrometer. 184mm long. Range 1.850 - 1.900. Mercury weight and paper scale. In black cardboard tube
1930-1980
Brass Clarke's hydrometer
1755
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass specific gravity hydrometer marked Gallenkamp
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980
Glass 'Technico' specific gravity hydrometer
1930-1980