We've been listing them as "room keys" on the ChipGuide but they are listed in the Slot Card Guide as they typically are also used in the onboard casinos. They're normally used as more than room keys, more like a cruise ID card. So in the Slot Card Guide I've been assigning special "CSxx" numbers for Cruise Ship ID cards and regular slot card issue#s for cruise ship cards specifically used for casinos.

If these are the only scans, I'll see about adding them when I get a chance. And if you have any extras I'd be interested.