T206 PSA Unknown Backs

[steve B]

It's only rubbish if it's taken as an absolute. The same is true of price guides.

If the number is taken as a general idea of where the card is on what's usually a bell curve, then it's pretty useful.

And sometimes the number can be figured out as at least temporarily factual.
One card I have is the highest graded for that player and pose (Maybe back too, I forget), except it's not. There's one other one or two grades higher but done before SGC put the brand and pose on the label. The other one was on Ebay and may still be, with a silly price.
Mine actually looks a bit better. The other has slightly better corners and a couple small stains. Mine has no stains.

The SGC pop reports show the higher grade one in the unknown back category - I forget their term, so I knew it was out there.

There's a few other things that can be figured out from the existing reports, not precisely, but generally.

Steve B