Last week I noticed a strange little nail knob in a misc electrical lot. Was estatic today when I recieved the package in the mail. It was definatly a no-tie nail knob. as I cleaned off the dirt, I thought cool it's a Pass & Seymour knob. Patented in 1892. It is marked on the top with P&S and on the bottom between the flutes, PAT/ 92/ 00/ 4. There are only two wire sizes list in the two avaliable catalogs on the insulators website. No.1 and No.2 for larger wires. This is a No.4. So great to find a rare piece and not a chip on it.