Estimated Date: 1890
Name: Dial Battery
Manufacturer: Williams Electrode Medical Battery Co.
Description: Battery and associated electrodes for electro-therapy. The top of the box is a dial which shows the relative position of the rheostat to deliver the current. An associated booklet is contained in the box describing the use of electrotherapy. There is a label with directions for use in the lid. The oak box is 10“x 7“x 7 1/2.”