hey gang here is one of the rarest errors I have ever owned...proof errors are exceedingly rare... It just arrived in the mail this afternoon. Check it out.

ohhhhh i like!!

Nice, snag, Matt. The doubling is subtle. I thought it was refraction/reflection from the slab at first

I bet this one is not one of the intentionally created ones and ended up in a proof set. someone must have been sleeping... or high.. at the QC at the mint... hahah