Here's a rarely seen or offered CD 106 Lime Green insulator embossed ESPERANZA S.A. E.S.A. (front) B.T.M. (reverse). Unknown what BTM is abbreviation for [id=407018149].

Excellent condition with two small wg pings and several pinpoint dome fleabites. Base outer rim was ground at the factory. First email gets this scarce insulator for only $190 plus shipping. Thanks