Just noticed a slight change in the cards from Potawatomi Northern Lights Casino in Carter, WI. On the previous cards the line on the back with the phone numbers was 38mm wide while it's only 34mm wide on these new cards.

Here's scans of the new found cards with the common back that shows the smaller phone# and address lines followed by a scan of the last card's back so you can see the difference.

Here's the old back..