Yes, There is a Ink Fountain Discoloration error on the 2017a FC, I posted another here 2017a Atlanta FC, graded so coolbreeze can see a graded one.
http://goccf.com/t/438361#3772595 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. Perhaps also depending how they refill the ink, if one side were to be refilled at a different time I also thought this could potentially cause slight coloration differences as well, such as insufficient ink on one side only for example which is also in that link. Very cool find and a keeper.

Edited by datadragon
06/27/2023 10:13 pm