Another early power guy in a great style, from the 19-teens era is this Pittsburg made piece which is stamped DEC 12 ANS. This is one of many similar codes that Pittsburg stamped some of they're insulators with to denote the date of manufacture, but so far nobody has cracked the code. Top skirt has a nice, uneven, drippy glaze, and three minor flakes or chips, two at base and one at saddle groove are about it for wear and tear. I pulled this from a long defunct tap off a 10,000 volt line which fed a mine in the Idaho Springs, Colorado area a few years ago. $25 plus shipping cost.