I've Never Counted This Many Errors On A Bill How Did This Get Make Circulation

@Jacuzzi - Best thing to do at this point is submit it for authentication and grading. If you're correct, I'll quickly apologize.

Cool looking note. At the moment I agree with Steve in Tampa. The main reason (as I'm learning ongoing...) I have read that the new LEPE overprinting lines print all the left-hand serials from one drum, and all the right-hand serials from a second drum. So it's entirely possible for the left and right serials to be different colors since 2013 on the $1 but for this note that would make an identical printed serial number error like this one seem impossible for that reason. Perhaps also depending how they refill the ink, if one side were to be refilled at a different time this could potentially cause slight coloration differences in the two sides like one side is darker or even one side being missing, but not both.

Example: https://www.numismaticnews.net/pape...r-discovered

As a general rule, the answer to this question is "it didn't". If you find "multiple errors" on a coin or note, 99.5% of the time, it's usually just one "error" or event that has caused all of the differences. Which is why I'm suspecting "solvent" for this note, as it would be a single "event" that can explain all the "wrong features". Occam's Razor says that if one event happening to a note is improbable, then having multiple improbable events happen to the same note simultaneously is extra-improbable. Not impossible, just really, really, really unlikely.

And, as another general rule: if you find "spectacular errors" on a well-circulated note, the chances are highest that those "errors" were not there while that note saw that heavy circulation - somebody else would have spotted it earlier and kept it, or somebody in a bank would have flagged it as "unfit for reissue" and destroyed it, long before it got to you.

Once it's back from PMG or PCGS, OP will have the last laugh on us. Or something like that.