Description:
Square resistance box with four dial switches and two small binding posts. The dials are marked "UNITS, " "TENS, " "HUNDREDS," and "THOUSANDS," and have steps marked 0-9. The outer knob of one of the binding posts is now missing. These elements are mounted on a hard rubber panel, attached by four large metal screws to a wooden base. Attached to the wooden base is a small plaque with the maker's information.