This CD 320 carnival 171 is probably the most popular of the Pyrex insulators that are in the CD 300s. It`s still small enough to fit nicely on most shelves. This particular piece is mint and has a good rich uniform carnival color. 1" up from the base of the skirt there is a defined line of color intensity change. The bottom 1" of the skirt is a lighter shade of carnival than the rest of the insulator. Usually priced at least in the $75 range but I`m pricing this one at $50 plus shipping.