Vintage Henry Disston keyhole saw is in great shape, Pat on the blade says May 26, 1875, Philadephia, PA. Has adjustable thumb nut, is removable, for changing blades. Blade is pitted from age, but still straight and sharp. Handle has the etched wheat design and the Whale tale handle. Blade measures about 11 1/2 ", total measurement of this keyhole saw is approx 17". This is a very beautiful saw, and would be a nice addition to any collection.