I just found and bought a steel backed, Disston and Sons steel backed saw, 14 TPI. The blade is 12 inches long and 3 1/2 inches wide. It was a flea market bargain. The most noteworthy aspect was that the teeth on the distal one inch of the blade (the first 14 teeth) have no set at all. It does seen to help establishing a kerf at the beginning of a cut. I thought it just an oddity until I found another one line that looks like the same saw. Has anybody seen this elsewhere?