Very Very hard to find and also with a new u number. I have caps also they have small flea bits on base . Very heavy will be at the Ohio show. It would take a while to find all of the insulators these insulators are marked with Illinois stamp. There were used for a 4 kv up fed from a vault . I know because I took them down off the pole and took the wire out of the vault . JASON TOWNSEND 245.00 sold sold sold