There is an 8 to the right of the left serial number and below it is a partial 8. Wondering how they got there
Who, what, when, where, why, and how are never to be known. Be assured, though, that it was not a part of the original printing by BEP.
Good morning and Happy New Year @Workingwoman. Maybe it is another example of ink from a bank teller's stamp getting onto the top bill of a stack of 'ones' just counted and taped?
Appears to be hand drawn as there is no impression and the ink bled into the surrounding paper. Odd and curious to say the least. Happy New Years to you Workingwoman.