1911 8 17 August 3, 4, 5, 1911 Galveston, Texas SPLITDORF SUPREME “Len Zengel in National in 50-mile race.” THE AUTOMOBILE Vol. 25 No. 7 August 17, 1911 9″x12″ page 193
1912 1 11 SPLITDORF Magneto Always There ad MOTOR AGE 8.75″×11.5″ page F4
1912 SPLITDORF Magneto TT and Coil Box