Since it would only be an "A" I'd keep it as-is for now.
It's certainly a curious thing, probably a skinned piedmont over a PB, but why? It's not a combination that would be more desirable, if anything the reback made it marginally less desirable, even going back a few years. PB isn't tough, but If I had two equal cards in hand I'd go for the PB over the piedmont.
It also seems odd that someone rebacking wouldn't use enough glue to keep the back on securely.
I wouldn't mind studying it, I think there's something to be learned even of it's just something about how the rebacking was done.
And if you've got to have graded I'd be happy to swap my Leach for it. (SC 350-30 probably grade a 20-30, creases but not trimmed)
Steve B
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