Late 1890's Disston No. 4 12" Backsaw, filed with 14tpi rip. This saw was in excellent condition when I found it, but the tooth line was pretty rough. I lightly cleaned and waxed everything then went to tuning the saw. I jointed the plate, then filed the teeth, then lightly set everything to make this saw really sing(pictures were taken before teeth were filed). If you need a nice 12" tenon or carcass saw, this will make a great user!