Here's a group from the two Arizona Charlie's locations in Las Vegas... first there's N1045, the original $25 house chip issued in 1988... next is N0557, the 1994 Chipco release... and finally V3673, made for Arizona Charlie's East in 2000. I wonder if a new $25 house chip will be out soon, now that the original Arizona Charlie's is being called Arizona Charlie's Decatur?