Here is a HEFTY CD 330 Pyrex insulator. It is a light yellow tint and there appears to be a light carnival coating to the top. This one does not have the 'A' next to the 663 on the rear skirt. Letter D on the top. Some damage. There is about a 5 inch long 'U' shaped crack that extends down from the wire groove above the PAT OFF MADE IN USA section (you are looking at it in the photo). The crack starts on each end from a bruise in the wire groove. The U is not a complete crack as the pieces do not meet (about a 1 inch gap). Another bruise to the wire groove between the ends of the crack starting points. 1/2 inch wide open bubble/gap to the umbrella edge at the same area as this crack (right side of photo). A neat 1 inch oval bubble in the umbrella (left side of photo). I have other photos showing the crack and the open bubble - ask and I can send them to you. I can deliver this to the MD Line Show, the Yankee Pole Cat Show, or the National in July. I prefer not to ship, but I can at your cost. Asking $850 (PG says 1250-1500). How about $650?