Can Southern Leaguers have a Piedmont 150 back

[53toppscollector]

the ink not fading through to the front would be the biggest tell for me that it is re-backed, beyond just the fact that we've never seen a SLer, to my knowledge, with anything other than a P350/OMSL/Hindu back.

The only other explanation I could think of is that this was a scrap, that they had the fronts for the SLers designed at the time the 150 series was being printed, and this was printed as a one-off test of some kind and discarded. But if that is the case, I feel like we'd have seen a few other random examples pop up over time.

If this is a re-back, its also kind of an odd choice. You understand why people would try to fake a HOF like Matty or Cobb with a front/back combo that doesnt exist, but a random SLer with a P150 back is a few notches below that.