- Early Door Alarm System with Glass Battery, c...
- Electromagnetic Motor, c. 1880...
- High-Tension Transformer, c. 1910...
- 2 Interesting Electric Motors, c. 1910...
- Magneto-Electric Shock Generator, c. 1880...
- Spark Gap Induction Coil...
- 3 Special Bulbs in Triple Mount, c. 1920...
- Froment's Electric Motor...
- 2 Small Electric Motors...
- Very Rare Nernst Lamp...
- 29 Early Carbon Filament Bulbs, 1900 onwards...
- Electric Motor with Chromic Acid Cell by Erns...
- Electric Motor and 2 Armature Models, c. 1910...
- Electromagnetic Rotating Motor, c. 1860...
- 2 Current Generating Dynamos, c. 1915...
- Small Experimental Motor, c. 1910...
- 2 Electromagnets according to Weinhold, c. 19...
- Small Electromagnetic Motor, c. 1900...
- Large Dynamo-Electric Demonstration Machine, ...
- Early Electric Motor According to Moritz von ...
- 2 Dynamo-Electric Machines, c. 1910...
- Electric Motor with Rotating Geissler Tube, c...
- 2 Early Electric Motors, c. 1910...
- Large Early Electric Motor, c. 1890...
- Early Electric Motor, c. 1900...
- Electromagnetic Motor with Geissler Tube, c. ...
- Electric Experimental Motor with Rotating Mir...