This is a nice clean late 1800's patented saw set pliers marked "DISSTON & SONS PAT OCT. 7 18.." on the underside of one handle, and "TRIUMPH" on the other handle underside. I believe the patent date is 1889, but I can't quite make it out. This is a good quality tool in very good condition with very little wear. It has a patented split slide, the top part being controlled by the top handle, the lower be the lower handle. The amount of set is adjustable, as is the gauge guide, all the adjustments are in working order. This one measures 7" long. A very nicely designed, fairly rare model, by a quality tool maker!