-
Electro-Magnetic Motor with Rotating Geissler...
-
Electro-Magnetic Motor for the Rotation of Ge...
-
Electro-Magnetic Motor with Rotating Geissler...
-
Dynamo and 3 Electric Bells, c. 1915...
-
2 Electro-Magnetic Motors, c. 1900...
-
6 Vintage Model Electric Motors, 1900 onwards...
-
6 Vintage Model Electric Motors, 1900 onwards...
-
10 Small Electric Motors, c. 1915...
-
4 Demonstration Model Electric Motors, c. 191...
-
3 Demonstration Electric Motors...
-
Large Induction Coil by Max Kohl, c. 1915...
-
Siemens & Halske Direct-Current Motor, c. 192...
-
Induction Coil based on Ruhmkorff Design, c. ...
-
Sliding Induction Coil based on Design by Du ...
-
...
-
-
-
-
-
