B. B. Clarke is the Editor of the Old American Thresherman

12 Hp Advance Engine
Courtesy of Homer F. Holp, R.R. 2, Brookville, Ohio 45309. Here is a picture of a 12 Hp Advance, No. 14038, shredding corn fodder and an 8 Roll Advance Rumely Husker, taken in 1939.
Homer F. Holp