Residue
It could be a PSA error but more likely it has to do with glue residue. PSA is really picky about a little glue residue on the back. The Davidson and Rucker both may have been removed from an album at some point, but a little residue might remain. If you can feel any grit on the raw card with your finger, then you might get a PSA 2 on an EX or better card. Sometimes the slight yellowing on the back can be evidence of residue from glue or maybe some other substance on the card. It is best to soak it again or just send it to SGC where they don't seem to mind about that, although SGC is picky about any paper loss on the back. I have a few successes on T & E cards where a 2nd soak led to a PSA 2 becoming a PSA 5 or 6.
|