Estimated Date: 1900
Name: Electrical Therapy Set
Manufacturer: Macintosh Battery and Optical Co.
Description: 16“x 8“x 3” purple velvet lined box with two layers contains 16 electrodes for eye, gu and various other orifices in top layer, diagnostic pieces in bottom layer and a grounding plate and 5 cloth sponges and a cautery handle in side compartment.
Reference 1: 58