Originally Posted by Demise

USCIS only has a few printing centers, might've been some delay as to when the card was actually created, or they had a few of the old cards left and just used them until they ran out. The cards are made as blanks onto which info will be burned in with a laser following some kind of a template.


Still, it honestly doesn't matter, there are people in US that have Green Cards from the 1980s that have no expiration date and they are in no hurry to replace them since they don't expire and the worst that happens is CBP being annoyed that they have to type stuff in by hand.