Due to blowing the engine in my van, I have no choice but to list some pieces I'd rather not. Tonight I am listing a very one of a kind junk in glass insulator.CD 155 Armstrongs DP1 in smokey olive with a large black rock in the fat lower WG lip. Somehow this one got thru the QC and out into service. As with most insulators that were annealed, the rock is close to the surface and as the insulator cooled caused an internal stress fracture around the stone. The fracture is completely internal, small and stablized. Aside from that factory caused flaw, the insulator has only a pin prick that I can find. I can assure you that another one like this will never be found. First mail to me... $127 shipped in USA/CANADA, other countries I will assist with ship costs. Now reduced to $98 shipped in USA/CANADA, other countries I will assist with ship costs