T206 150 vs 350 & 460 Image Quality: Eddie Plank, A Broken Plate (?), & Everyone Else

[Pat R]

I found a new print flaw recently and it's an "elite 11" timeframe print flaw.

It's a white spot on Konetchy's sleeve on his forearm

here are the numbers and backs that I found it on

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it's only the 2nd out of many (100+) print flaws that I've found on both a 150 and 350 series back the other was Tom Jones an elite 11 subject and that flaw was also only found on PD150, EPDG, and PD350.

I'd like to do a hi-res group scan of the PD150 and 350 flaws next to a couple of PD350's without the flaw to see if Steve is right about the possibility that some of the 350 backs were printed on leftover 150 fronts, I think this flaw would give us a pretty definitive answer.
If anyone has a konetchy with this flaw that they would sell I would like to buy it for the research.