I consider this to be one of the rarest George Bishop saws. I posted my Disston Dovetail Collection a few days ago, and the No 70 is smaller and more dainty than the No 4, as an example. For this reason the No 70 was not a very popular saw. Also, the No 70 had brass plated back and saw nuts, but the saw nuts were very simple, just a plain domed nut with no Medallions. Even so, brass was expensive even back in the early 1900s. The backs had no maker stamp on them, and the only marking was the etch on the blade. Many of them had the etch wear off, but you can typically find some etch left. The brass plated parts were expensive in their time, but because these saws were smaller and a bit more dainty, they could price them close to their other saws. They didn't sell well though. This George Bishop saw is even more dainty than a Disston No. 70, and the handle is much thinner, to the point that it is almost too small. It has a brass plated back similar to No 70 and the saw nuts are exactly the same brass plated style and they have a patina exactly the same as my No 70s. The handle on this had been broken and it is currently affixed with a screw through the top holding it on. It also has a hole in the handle as well. and the bottom tip was broken off as well. It has an 8" saw plate with 1 1/2" useable plate depth. It has been dropped and the back smashed down on the front when I bought it. I know I could replace the handle and have a very nice dovetail saw, but I consider it to be a piece of history the way it is. As with the No 70s, this saw was not made to the same quality level as the larger tenon saws, but seems intended for the same purpose, cutting joinery.