Electrostatic Friction Generator

A good electrostatic friction machine.

Mahogany frame, single glass plate, brass crank, leather friction pads numbered in ink on the back side No: 1, 2, 3, 4. One off the pads in unclearly signed.

Dimensions: 77 cm high, 57 cm wide, 20 cm deep. Plate diameter 56 cm.

Holland. Ca. 1800.

€ Sold

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