What is the origin of Frank Thomas NNOF?

[West]

Originally Posted by swarmee

Yeah, correlation does not imply causation, as I learned in science. They could be an interim printing stage, but they're much more likely to be a replacement of the printing plates with their own flaws, IMO. Which those were then further corrected.

Add: I recall someone saying that Topps likely had 7 printing presses, with each needing a set of plates. Not sure how true that is, but this could show that one set of plates had one set of errors (regular NNOF and other blackless partial border/background cards), then a different set of plates had these errors you're spotting (two gaps Frank Thomas, Tapani gap).

I think you misunderstood my post. I fully agree with you - these smaller errors were not “caused” by the NNOF. But they are closely related. By that I mean it is 99% certain that these errors were subsequent or simultaneously printed alongside the NNOF at the factory. There is almost no other way they end up next to each other in packs of the same case when you consider the sheer volume of Topps printing back then.

I believe it is possible there were a series of bad plates or negatives in sequence as I posited above in my post on 8/8. Would love to hear other ideas/theories.