I understand these are a bit uncommon. The whitish spots you see in the photo are areas with no glaze. You will also see the black areas of glaze.

Perhaps the most interesting feature is the glazed over chip... You can see this in the close-up on the right. On the outside skirt just right of center, you can see a 1/4" vertical line. This is part of the chip. I assure you this is "factory mint" and this is not a after use chip. Kind of neat. If I were a porcelain collector, I'd keep this interesting "character" piece.

I have no idea how to price it, so I'll say $10 plus shipping. Maybe it's a steal, but I'll be happy just to see it have a good home.