Lead retort for distillation of hydrogen fluoride, by F.E. Becker & Co. London 1915 Lead retort for distillation of hydrogen fluoride Experimental Chemistry 1915
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 Photographic Technology 1909-1919
Balance to carry 1000 grammes and to turn with 20 milligrammes 6 inch pans Analytical balance Weighing & Measuring c. 1886
Inducation coil by F. E. Becker & Co., London, 1904 Inducation coil by F. E. Becker & Co. Science Teaching 1904
Balance to carry 10 Kilogrammes, and a centigramme, 10 inch pans Analytical balance Weighing & Measuring c. 1886
Crookes vacuum tube, contains fluorspa, by F. E. Becker and Co., 34 Maiden Lane, London, WC, England. Crookes vacuum tube Radiomedicine
