[edhans]

I'm a little suspicious. The blue is an odd tint and doesn't match any from the linked Heritage auction or any that I've ever seen. There also appear to be spots where the "overprinting" is on top of some soiling. The paper loss near the top line of the overprint may have been done deliberately to create the opposite impression. By way of full disclosure, I've seen many examples, but never owned one and can't claim to be an expert on them.