Pearson's Nailer. Material: metal. Size: 8" H. x 12 1/2" L. Description: cast malleable iron and sheet metal construction; consists of a hopper where several dozen 1 1/4" nails were dumped; the nails funneled themselves down into the three slots in the bottom of the hopper and then into a single slot; the nails were stopped and controlled by parallel spring hooks; when the carpenter would strike the plunger with his hammer, the springs were spread, driving the nail in halfway; another spring forced the plunger to retract, and as it did, the next nail was released into position; The nailer was then moved aside and the carpenter would hit the set nail again to completely pound the nail into the board. Stenciled on top: "No. 13 R"; this nailer is missing most of the stenciling, most nailers were stenciled with the following: On the side, "Manfd. by Pearson Mfg. Co. Robbinsdale, Minn. 1919". On the top of the hopper, "Use 1 1/4 inch wire nail No. 13". On the cast iron handle, on one side, "Pat. Jan. 26 '92 and Jan. 7 '08", on the other side, Pearson's Nailer".