Hellige(?) haemoglobinometer, plated steel and glass, made in Germany, 1890-1930 Haemaglobinometer; Germany 1890-1930
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
Tenderometer, for measuring peas, used at Birdseye Walls Ltd., by Universal Canning Company, 1933-1943 Tenderometer for Measuring Peas, 1933-1943 1933-1943
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
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
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
Hill and Barnard sphygmomanometer, in case, by J. Hicks of London, 1897-1910 Sphygmomanometer (blood pressure apparatus), 1897-1910. 1897-1910