This is a CD 226 - embossed No 115 (front skirt). It has some chipping at the base of the threads and around the inside of the outer skirt. There are some shallow small chips above the wire groove. I have seen several of these insulators - this one is in pretty good shape!!

This insulator would look good at your house!!

The price guide lists these at $40-50 - this piece can be yours for $35 - includes shipping and insurance (in the US...will work with those from Canada). Payment can be made by check, money order or PayPal.