in a vast sea of RENs and CTCs, three of these CTMs were found. CTM is a new one on me. Over the years I've picked up what I consider different plastic and rubber insulators for Rick Soller, in case he does not have a certain type in his collection. Rick has not heard of this one, either. Has anyone else? It's just like the RENs, CTCs, L-Ws, and CEECOs.