The insulator in the left is a Cobalt Glazed FINDLAY ELECRICAL PORCELAIN CO U-15. On the right is a cobalt glazed Square D pony. the Findlay was given to me by my dear friend, Mr. Ball, a retired U.S. lineman who lives in my area, and the same guy who played a very important role in the development of my interest in insulators. I told him that I liked it because of the dome, which is tilted because of a trimming error. You can see this in the photo, maybe not too well, though. See a [id=49638849; photo of the marking on the dome].