Here's an unlisted Spanish insulator embossed E.S.A. (front) 25 (reverse) in a nice green aqua. Has 3 teeny bb pings and some small scratch marks on reverse skirt. VNM. Measures 3 15/16 W x 5 1/4" T. This style is a lot taller than typically found. Not showing on NIA website or GIFONA book. Update: Assigned new CD 577.1.

First email gets this unlisted Spanish power insulator for the reduced price of only $125 plus shipping. Thanks!