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5" diameter bunsen burner by F.E. Becker and Co. London

1900

Bunsen Burner, 1885-1889

1885-1889

`Nivoc' standard resistor no. 1263

1900-1945

`Nivoc' tangent galvanometer by F.E. Becker & Co. Ltd.

1900-1945

Tangent galvanometer

1900-1945

Beamscale, in mahogany and glass case

circa 1886

Set of metric weights

circa 1886

Cased set of weights

circa 1886

Clement-Desormes' Apparatus, 1900-1906

1900-1906

Aesthesiometer, Sieveking, brass and nickel

1856-1900

Measuring (travelling) microscope in fitted wooden box

1900-1945

Scale for use with reflecting galvanometer

1900-1945

Post Office Box by F.E. Becker & Co.

1900-1945

Bunsen's Ice Calorimeter, 1900-1906

1900-1906

Skeleton model of compound microscope

1901-1910
Lead retort for distillation of hydrogen fluoride, by F.E. Becker & Co. London 1915

Lead retort for distillation of hydrogen fluoride

1915
Inducation coil by F. E. Becker & Co., London, 1904

Inducation coil by F. E. Becker & Co.

1904
Balance to carry 1000 grammes and to turn with 20 milligrammes 6 inch pans

Analytical balance

circa 1886
Two paper maker's slide rules, patented by William Stanhope Buchanan in 1918: an initial rough model and a finished example made by C.T. Cooper and Sons for Becker and Co.

Two paper maker's slide rules

1918-1925
Crookes vacuum tube, contains fluorspa, by F. E. Becker and Co., 34 Maiden Lane, London, WC, England.

Crookes vacuum tube

Voss electrical machine 18" plate

Voss electrical machine 18" plate

1886
Berthelots apparatus for measuring latent heat, by F. E. Becker & Co. (W. & J. George Ltd.), 30-37 Hatton Wall, London, England, 1900-1907. (See note.)

Berthelots Calorimeter, 1900-1907

1900-1907
The Ho model eye demonstrating basic principles of vision. With a brass base and pillar supporting tube fitted with the iris diaphragm. There is a provision for inserting glass lenses, ground on rear surface, and different curvatures on front face. The lenses are marked I, II, III, and IIII. F.E. Becker and Co. c.1913

The 'Ho Model' eye

1909-1919
Balance to carry 10 Kilogrammes, and a centigramme, 10 inch pans

Analytical balance

circa 1886