Posted By:
boxingcardmanI'd pay more for a card from a well-known collection conclusively ID'd as such, condition adjusted. Burdick and Barker used to write or stamp on their cards. If you offered me a card with some anonymous back writing or Buck Barker's notes I'm going to take the one with Barker's notes. Ditto for a card with an ink stamp versus one with Burdick's stamp on it.
If you are asking whether provenance will be a necessary part of authentication as it is in the art world, I don't think we are going to get to that point.
Sic Gorgiamus Allos Subjectatos Nunc