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percussor and pleximeter, 19th century.

1801-1900

Guy's cerebrospinal manometer, 1860-1950.

1860-1950

Volta type Eudiometer, English, 1861-1872

1861-1872

Dr Tata's Pneographe, 1890-1910.

1890-1910

Kidney oncometer, 1877-1879.

1877-1879

A stromuhr for measuring blood flow, 1880-1881.

1880-1895

Electrical meter to test charge and electronics

2006-2021

Measuring stick

Tenderometer for Measuring Peas, 1933-1943

1933-1943

Glass Hydrometer, Beaume No. 1, 1866-1876

1866-1876

Electrocardiograph machine, about 1940

1935-1945

Mach meter Type K B 222/01, c 1950s.

circa 1950

Gauging loupe for precious gems, 2001

2001

Occultation reaction timer

1950-1975

Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Haemaglobinometer; Germany

1890-1930

Ureameter set in cardboard case by Parke, Davis and Co, American

Ureameter set, c 1900.

1890-1910

Radiation measuring apparatus: five items

1950-1975

Miniature thermometer, mercury in glass, by W. Harris and Co., 50 Holborn, London. Fahrenheit and Reamur scales; polished wood case (25mm. x 70mm). Wellcome No. B936

Traveller's Thermometer, 1813-1839

1813-1839

The Shindler Carat Estimator, a gauging loupe using a graticule scale to assess the size of diamonds in jewellery giving their carat weight and value, 1985.

The Shindler Carat Estimator

1985-1998

Quain's stethometer in case, by Delolme and supplied by Coxeter, London

Quain's stethometer, late 19th century.

1871-1900

Glass pipette, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass pipette, Haemaglobinometer; Germany

1890-1930

Steel Lancet, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Steel lancet, Haemaglobinometer; Germany

1890-1930

Glass rod for stirring (?), Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass rod for stirring (?), Haemaglobinometer; Germany

1890-1930

Glass tube with a rubber stopper, stored in a black plastic case with screw-on lid, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass tube with a rubber stopper, stored in a black plastic case with screw-on lid, Haemaglobinometer; Germany

1890-1930

Comparison Chamber of Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Comparison Camber, Haemaglobinometer; Germany

1890-1930

Glass tube with a short glass pipe on one end and pipette on another end, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass tube with a short glass pipe on one end and pipette on another end, Haemaglobinometer; Germany

1890-1930

Glass tube, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass tube, Haemaglobinometer; Germany

1890-1930

Glass plates wrapped in paper, Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930

Glass plates wrapped in paper, Haemaglobinometer; Germany

1890-1930

Alcohol minimum thermometer with index in red leatherette case 4 1/4" x 2"; Fahrenheit and Reamur scales, 1838-1859. Marked William Collins, Night. Wellcome No. B954

Minimum Thermometer, 1838-1859

1838-1859

Brewer-type mast ozonesonde in polystyrene housing; model 730-8, serial no. P-11625, by the Mast Development Company, Devonport, Denver, Colorado, 1991. Used in the European Arctic Stratospheric Ozone Experiment, 1991-92.

Brewer Mast Ozonesonde, 1992

1991-1992

Seca Cardiotest 100 cycle ergometer, model 545, with digital display of load, rpm, heart rate and duration, used for exercise testing of cardiac patients (without electrodes), by Seca Ltd, UK, produced for Seca Vogel & Halke, Hamburg, Germany, serial no. 920265, 1993

Cardiotest 100 cycle ergometer, 1993.

1993

Hill and Barnard sphygmomanometer, in case, by J. Hicks of London, 1897-1910

Sphygmomanometer (blood pressure apparatus), 1897-1910.

1897-1910