https://www.insulators.info/pictures/?id=445475415 This one was in service. Mine came from a lineman who passed on . Glad he saved something from Rockford 40 years ago, as many of them are throwing them away not knowing they are collectable. But they say they don't even see these. WOW!
These are so tough and the first on I've had in probably 10 years now. They always sell well over $50 and I'll let the one go for $50 + $9 for shipping...vnm or better.