Category: Electricity
Estimated Date: 1873
Name: Boyds Battery

Description: 1” sphere with multiple smaller spheres surrounding a 6 pointed star on which is imprinted Boyds Battery, pat. Jan 17, 1873. Composed of various metals, 12 discs beside the star all contained in a circular rim.

Reference 1: 272

Electrostatic Machine, Halse
Electrotherapy Apparatus
Tesla Coil
Electrostatic X-Ray Machine
Boyds Battery