Large Current-Generating Dynamo, c. 1910

29 Early Carbon Filament Bulbs, 1900 onwards

Electric Motor and 2 Armature Models, c. 1910

2 Early Electric Motors

2 Power Generators

Needle Galvanometer by Siemens & Halske, c. 1910

3 Interesting Toy Electric Motors

3 Small Electric Motors, c. 1920

3 Interesting Electric Motors, c. 1920

Electric Motor Teaching and Experimental Set, 1915

Eletromagnetic Motor with Geissler Tube, c. 1910

2 Early Electric Motors, c. 1895

Bright High-Wattage Light Bulbs, c. 1925

3 Small Electromagnetic Motors, c. 1910

Cased Experimental Motor Set, c. 1910

Large Electric Motor on Heavy Iron Base, c. 1900

Electromagnetic Motor with Geissler Tube, c. 1910

2 Early Electric Motors, c. 1910

Large Electromagnetic Motor with Rotating Geissler Tube

Electric Motor with Rotating Geissler Tube, c. 1910

2 Precision Galvanometers, c. 1900

Page's Electro Motor, c. 1920

Current Generating Dynamo, c. 1910

2 Dynamo-Electrical Machines

Electromagnetic Motor with Geissler Tube, c. 1910

Novi Power Generator with Spotlight, c. 1920

2 Induction Coils, c. 1905

Ruhmkorff-Pattern Spark Coil, c. 1920

Spark Gap Induction Coil

Induction Coil

Induction Coil for Physical Experiments, c. 1925

Large Induction Coil with Mercury Interrupter, c. 1910

2 Small Electromagnetic Motors, c. 1900

Group of Electric Devices