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HF tester

circa 1960

BM Test Haemo-Glukotest strips and lancets for measuring blood glucose level

1980-1990

Paper Temperature Recorder, Galvanometer Type, 1901-22

1901-1922

Map measurer

1801-1840

30cm T-rule

Map measuring wheel and calculator plate

1880-1920

Level and angle indicator by Fletcher and Sinclair

1860-1910

Measuring machine

1850-1860

Steelyard ammeter, 1885

1885

Chinese foot-measure, Chien-Lung period

Bimetallic Thermograph, 1901-1920

1901-1920

Depthing tool brass

Revolution counter by Elliot Bros

Gimballed compass plate

Original Callendar electrical temperature recorder (including integrator) in wooden case, 1897.

Callendar Temperature Recorder, 1897

1897

Two paper discs, with a scale around the outside from vacuum tubes

Vacuum tube measuring disc

1898

Clearspan P100L single pen temperature recorder with spare chart and accessories, 1970-78. Calibrated to use copper constantin thermocouple.

Single-Pen Electrical Temperature Recorder, 1970-78

1970-1978

Pressure measuring device for feet, in white cabinet, invented by Mr. Dodds

Pressure measuring device for feet

ECG machine by the Cambridge Instrument Co. A unique calibrating model, c.1940. With box of ECG leads and spare parts, & galvanometer (without scale).

Electrocardiograph machine, c.1940

1935-1945

Single thread electrical temperature recorder in glazed case, by The Cambridge Scientific Instrument Company Ltd., Cambridge, England, 1910-14. Range say 0-1000°C, with 100 charts

Single Thread Temperature Recorder, 1910-14

1910-1914