One of my favorite's, the lapp M-2210. A long time ago, i found 3 of these along a railroad in Pennsylvania. Had to work pretty hard to get up to them, and when i got there i found they had been securely cemented to their pins. This one had the same cement in it, and an iron thimble, so if someone got this one, then maybe if i go back to where i found the others i could get them. Though my origional thought was that if i applied enough torque to the insulator it would eventually come off the pin, and i would prbably fall off the cliff side along with it.