Hey T206 folks...some information requested

[Golfcollector]

I am casually aware of the variations on T206's (including the different factory backs). I am not new to card collecting by any means but I am no where near an expert that many of the folks here are on T206 cards.

I know psa has recently (not sure when exactly, so if someone knows this feel free to post it here as well) started labeling their holders with not only the name, player and grade but also the factory back.

I recently had some PSA cards graded. Included in the group was a Sovereign Factory 460 Back and also a Sweet Caporal Factory 150/649 OP back.

How scare are these in terms of T206 backs? ANY information would be greatly appreciated.

Thanks in advance for your responses.

Dave