Poker Zombie
Royal Flush
How the hell does that happen? I mean it’s not a 2 piece hotstamp.
Those chips were made back when printing was done on offset printing presses.
Without getting into many details of offset printing, each color has to be applied separately. In the Reno chip examples, The labels are printed with the red ink, allowed to dry, and then a new plate/ink is added to the printer and the labels are sent through a second time for the green ink. The process takes some time to align properly, and those error chips were probably early runs with the secondary color. After the printer looks at the result, he can adjust a few millimeters. The lower printing probably just slipped through quality control as "good enough".