This insulator is a VERY unusual and unique insulator. Exactly like a 2 piece tramp in it's construction but I think these are a fuse type insulator. I could be wrong but I do know that these do not show up cept once in a blue moon. Insulator is clear. One eye had broken off, which I have glued on to display almost mint. Couple tiny pin point tics on the skirt. Displays excellent once eye piece is glued back on. I think these are selling for around $100.More pix on req of removed eye, insulator taken apart, etc....First mail to me.... $78 + actual shipping. I also have the other thru bolt and other misc items that come with it. Now reduced to $60 + actual shipping