- Sliding Induction Coil based on Design by Du ...
- Induction Coil based on Ruhmkorff Design, c. ...
- Siemens & Halske Direct-Current Motor, c. 192...
- Large Induction Coil by Max Kohl, c. 1915...
- 3 Demonstration Electric Motors...
- 4 Demonstration Model Electric Motors, c. 191...
- 10 Small Electric Motors, c. 1915...
- 6 Vintage Model Electric Motors, 1900 onwards...
- 6 Vintage Model Electric Motors, 1900 onwards...
- 2 Electro-Magnetic Motors, c. 1900...
- Dynamo and 3 Electric Bells, c. 1915...
- Electro-Magnetic Motor with Rotating Geissler...
- Electro-Magnetic Motor for the Rotation of Ge...
- Electro-Magnetic Motor with Rotating Geissler...
- Carbon-Zinc-Battery by Gustave Trouvé, c. 189...
- 2 Demonstration Electro-Motor Trains, c. 1915...
- 6 Unusual Electrical Motors, c. 1915...
- Electric Motor and 2 Armature Models, c. 1910...
- Alternating Current Motor by J. Kalb & Co., c...
- Large Electro-Magnetic Motor, 1910...
- Electrical Machine and Battery, c. 1900...
- 5 Interesting Light Bulbs, c. 1920...
- Bright High-Wattage Light Bulbs, c. 1925...
- Large Electro-Magnetic Motor with Rotating Ge...
- Ramsden's Electrical Machine, c. 1850...