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After a brand new roulette setup was put in use at a Las Vegas, Nevada casino, it was discovered the number 28 was black on the wheel, as it should be, but red on the betting layout.
Confusion ensued, particularly concerning red or black bets, when the ball stopped at 28. Was it red or black?
This error also altered the odds for red and black play, as the layout erroneously contained 19 (versus the correct 18) red and 17 black numbers. To resolve the problem, the red 28 on the layout was changed to black.
Photo from freeimages.com: Roulette de Casino by Mike Esprit