4 Interesting Physical Demonstration Models, c. 1900

2 Chrome Acid Cells

Leybold X-Ray Tube, c. 1910

2 Electrostatic Induction Demonstration Models, c. 1900

10 Geißler Tubes, c. 1900

Large Experimental Electric Motor, 1871 onwards

Electrophysical Demonstration Model, c. 1890

French Demonstration Model by Ducretet, c. 1895

Electric Motor with Rotating Geißler Tubes, c. 1900

"Geißler Tube" Demonstration Model

7 Electron Tubes

Large Geißler Tube, c. 1900

Static Charge Demonstration Model

English Brass Plate Sundial, 19th Century

Large Induction Coil According to Ruhmkorff, c. 1900

Large Wimshurst's Electrostatic Machine, c. 1890

Abel's Petroleum Tester, c. 1885

Large Nairne-Type Electrostatic Generator, c. 1800