Spoke with PSA recently & asked them about slabbing blank backs, and heard back "We have never processed proofs and the biggest reason is the there are two known varieties that can occur for T206. There are blank back & proofs that are known to hobbyist. There is no definitive way to discern between both of those situations accurately, thus we have never processed both types of items."
Thought that was strange.
Here's my two:
|