Vintage wood scribe measuring tool with brass screw and a decorative scroll on sliding block. Tool is very solid block still slides freely. Ruler markings are not really clear as you can see in the pictures which is to be expected with age. Scribe end is really solid and tight there is a screw there looks like you would loosen to replace scribe. Pat Aug 5 1873 is inscribed near the 6" mark on the tool. Measure 8 1/2" long x 1 7/8" at widest x 5/8" wide ruler part.