PATENT DATED 1900 MOTSINGER DEVICE MFG. BI-POLAR / BIPOLAR ELECTRIC “AUTO SPARKER” DYNAMO MOTOR INVENTED BY HOMER N. MOTSINGER Antique bi-polar electric motor. American made in a small factory shop in INDIANA. With maker’s name / patent data plaque. Measures 11″ TALL x 10″ LONG x 5 1/2 WIDE in size. Each double coil configuration…