Vertical Force Variometer by Watts, with tripod and case

Made:: 1931 in England

maker:: E. R. Watts and Son Limited

Vertical force magnetometer (variometer) and reflecting head by E.R. Watts & Son Ltd, and recording apparatus with mercury thermometer by Cambridge Scientific Instrument Co., with cased tripod and instrument case, 1931.

Details

Category:: Terrestrial Magnetism

Object Number:: 1935-540

type:: magnetometer (vertical force)

credit:: E. R. Watts & Son

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