For example; say in 1955 when the Dunes casino opened you were there playing a game, then you left the casino but forgot you still had a $25 chip. You also left to go back home and knowing you would go back sometime later you didn't worry about it. Well, you finally go back to Vegas but not until 1975 and now the casino (estimating) is on the 8th issue of the Dunes chips. Would the casino still honor your $25 chip? My guess is they would but would have to check it out before knowing it is a good chip. What do you think?