I just ordered 6 rider back decks from an online retailer 3 red and 3 blue in the 'Classic' tuck box. When I got my order and inspected 4 of the decks had the Kentucky trademark. 2 of the red decks are different, they say 807-R-TG on the bottom next to the bar code and have the made in Ohio lettering along the side. I did some research on these cards with little resolution, mostly was just speculation on what the code means. A bunch of online stores sell them as being 'very rare' limited run etc.

So are these decks rare? Should I not open them?