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Torsion Balance

1890-1910

Torsion Balance

circa 1928

Torsion Balance

1923
Torsion balance for surface and interfacial tension measurements, with all accessories in separate case, made by White electrical instrument Co.

Torsion balance for surface and interfacial tension measurements

1960-1969
Searle's torsion balance by W.G. Pye & Co. Ltd., Cambridge, England, with counterweight, scale pan, clip, microscope slide, and an incomplete set of fractional gramme weights.

Searle's torsion balance by W.G. Pye & Co. Ltd.

1911-1965