Physical description

Cast in mold, machine made. Dipped coating on main body. Glass window. Surface finish: black plastic coating, glass.

Inscriptions & markings

“X-RAY/ MILLI-AMMETER/ PATENTED AUG. 30, 1904/ VICTOR” On rim near left hand side screw there are yellow markings- one marking is in the shape of a cross and the other resembles the symbol of a fish.