Glass lactometer
1850-1920
Glass Gerber hydrometer
1900-1960
Glass lactometer
Lactometer, in case, by Chevallier, French
Lactometer or Milk Tester (dated 1869) by MOTTASHEAD & CO
1869
Mercury in glass lactometer, in case
1830-1920
Hydrometer, mercury in glass lactometer, with case
1830-1920
11 c.c syringe for milk testing apparatus
Lactometer in a blue leatherette cardboard tube case for milk testing apparatus
Glass lactometer in case
Lactometer, glass, in cardboard container
1901-1930
Glass lactometer
Lactometer, in case, French (Crellin 106)
Quevenne type special lactometer
Lactometer, commercial grade graduated in specific gravity and equivalent milk scale
Glass lactometer, England, 1875-1900
1875-1900
Galactometer with case
Lactometer, glass, in cardboard slipcase, c. 1900.
1900
Flask for milk testing apparatus
Thermometer for milk testing apparatus
Four butyrometers in wood stand for milk testing apparatus
Lactometer, glass, in cardboard container
1901-1950
Glass lactometer by unknown maker
1900-1960
Glass lactometer with paper scale
Lactometer, British Standard 734. Range 1.025 to 1.035 g/ml. G.H. Zeal Ltd.
Lactometer, made by Dairy Supply Co
1910-1950
1ml tilt measure for milk testing apparatus
4-bottle water bath for milk testing apparatus
4-bottle machine and handle for milk testing apparatus
Hydrometer, mercury in glass lactometer
1801-1830
Glass lactometer with integral thermometer with case; scale inscribed 15-45
late 19th century
Lactometer, mercury in glass
1830-1920