The prior owner of this die had it stickered with a date...

Your experience dates to 1994 and this die might be from 1998, yet "Riverfront" is not in Greg Susong's "American Riverboats" Guide!

I should also add that this die came from a bucket full of about 900 dice, the majority of which are blanks. Since many of the blanks are manufacturer rejects with unfilled spots, unpolished sides, bad hot-stamps, it is quite possible that this die did not come from the casino, but instead may have been a floor sweeping.

However, of the 900 die, several hundred are actual dice, but seeing how none are cancelled, it is still possible that they all came from the manufacturer.

Jim