Whirling Psychrometer, 1950-1953
1950-1953
Marine thermometer by Negretti and Zambra
1890
London & Birmingham Railway clock
1837
Clinical thermometer
1851-1900
Earth thermometer with bent stem, c. 1925.
1925
Alarm clock
1840-1900
Electric Construction Company mercury arc rectifier
Thermometer, mercury, to 110°C in 10x1° increments with milk glass scale
Thermometer, mercury, -20° to 110°C in 10x1° increments with milk glass scale
Improved hydrometer with four weights
1815-1825
Hydrometer for heavy liquids
Set of 5 mercury-in-glass Sikes' hydrometers by Peter Stevenson
Glass 'Technico' hydrometer
1860-1980
Glass 'diabetes' hydrometer by unknown maker
1870-1940
Glass 'Technico' hydrometer. 184mm long. Range 1.850 - 1.900. Mercury weight and paper scale. In black cardboard tube
1930-1980
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 hydrometer marked Gallenkamp and marked 'Spec. Gew.'
1900-1940
Glass hydrometer by unknown (probably German) maker
1870-1940
Glass hydrometer by unknown maker
1860-1980
Thermometer, mercury, 0° to 220°C in 10x1° increments with milk glass scale
Thermometer, mercury, 50° to 100°C in 10x1° increments with milk glass scale
Thermometer, mercury, -30° to 110°C
Thermometer, mercury, 0° to 360°C in 20x2° increments with milk glass scale
Hydrometer set in wooden case by J.F. Van Deene
1882, 1899
Hydrometer for alcohol; Cartier and Gay-Lussac scales
Fahrenheit thermometer
1880-1920
Hydrometer marked O or W at top
Glass hydrometer by J Hicks
1880-1940
Thermometer, mercury, -10° to 100°C in 10x1° increments with clear glass scale
Thermometer, mercury, -10° to 100°C in 10x1° increments with clear glass scale
Thermometer, mercury, 0° to 100°C in 10x1° increments with clear glass scale
Thermometer, mercury, -20° to 200°C in 10x1° increments with clear glass scale
Thermometer, mercury, -10° to 100°C in 10x1° increments with clear glass scale
3 diabetes hydrometers
1871-1930
Glass hydrometer by unknown maker
1860-1980
Glass Gerber hydrometer
1900-1960
Glass specific gravity hydrometer marked Townson & Mercer
1900-1960
Mercury-in-glass thermometer in cardboard case measuring in the range -20 to 360 degrees Centigrade
1850-1924
Walferdin maximum thermometer, by Stock á Paris
1800-1899
Buss Hydrometer
1890-1900
Thermometer, mercury, -10° to 120°C in 10x1° increments with milk glass scale
Still head with thermometer
Thermometer used by Thomas Hancock in his vulcanisation of rubber experiments
1840
Standard mercury thermometer, 1854
1854
Lowne patent sympiezometer
1875
Urinometer, glass, unsigned, British, c. 1930
1920-1940
Bent clinical thermometer
1820-1880