This is a really nice piece. Other than a fan bruise on the base and some typical minor base chipping (mostly at the overpoured flange) this piece is otherwise flawless. There's a "scribble" of amber in the base, visable on one of the pictures. The measurements of the insulator are inbetween those of the .1 and .3, but the profile looks to me like the .1. The height is 3 13/16, and the base is 2 13/16. There's a label inside the skirt that says "10.4.72" I assume that's the date that it was collected...it was on the piece when I acquired it. I'm asking $525 shipped within the U.S.