[bi-metal, brass, smooth edged]		[hardwood board, hard clay]

Because of the smoother edge, the bi-metalled Brazilian Real coin has gliding potential when rolled at a choice flooring such as the jai alai court at Milford Jai Alai in Connecticut. This would be an interesting matchup. The coin should be able to handle its own for a considerable amount of time before the flooring takes hold of the momentum.