I believe these cards were printed around 2004. Northwest Airlines changed its livery around 2004, and these cards show the new livery and logo. This printing of cards has a different fleet of aircraft as well. Oddly enough, this was around the same time that Delta Airlines started printing their cards. The last card is a bit odd. The front of the card fits with the 4th printing. It matches all the others, but the back matched the backs on the 3rd printing. We placed it in the 4th printing as there is already a 747 cargo in the 3rd printing. But we do not know why they would have this one card that would live in both printings. Not to mention you would have to be on an odd flight to get a card from a cargo pilot.

See more information on all Delta Pilot Cards on https://deltapilotcards.com/