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Leech microprojector

1951-1960

ECG machine

1968-1976

Fahrenheit thermometer

1826-1854

Bath thermometer

1871-1925

Portable apparatus for continuous administration of Pentothal

1935-1945

Cambridge multi-channel recording outfit using photographic paper recording method, by Cambridge Instrument Co., 1956

Cambridge multi-channel recording outfit using photographic paper recording method

1956

Pulse analyser type N102, by Dynatron Radio Ltd., Maidenhead, 1950-1960

Pulse analyser type N102

1951-1960

Junior electrocardiograph machine, portable, recordings made on photographic paper, supplied by Sierex Ltd., London, made by Elema-Jarnh, Stockholm, 1945-1955

Junior electrocardiograph machine

1945-1955

Cossor-Robertson electrocardiograph machine, purportedly the first kind to allow direct visual observation and a permanent record of the pulse, by A.C.Cossor Ltd., 32 Corsica Street, London, N5, England, 1930-1950.

Cossor-Robertson electrocardiograph machine

1930-1950

Vickers M41 photoplan microscope with power pack and instruction booklet

Vickers M41 photoplan microscope

1975-1980

Electrically illuminated liquid prismatic compass by Kelvin, Bottomley and Baird, early 20th century

Surveying compass, British, 1913-1920

1913-1920

Portable apparatus for continuous administration of Pentothal, Major Dennis Dunnill's design, by Down Bros., 23 Park Hill Rise, Croydon, England, 1935-1945.

Portable apparatus for continuous administration of Pentothal

1935-1945

Analogue drum transport system by Dresser SIE, Houston, 1965, for transcription of data from analogue to digital tapes

Analogue Drum Transport System by Dresser SIE

1965

Electrocardiograph machine, portable and with own trolley and accessories, 4-lead model, recordings made on photographic paper, by General Radiological Ltd., London, 1945-1952

Electrocardiograph machine

1945-1952