[silver, cupro-nickel]		[industrial carpet stitch, hardwood]

Because of the smoother edge, the Peace Dollar — predecessor to the Eisenhower variety — would be an excellent selection when rolled at a splendid terrain such as the spiraling ramps of the Guggenheim. This would be an interesting matchup. The coin should be able to handle its own for a considerable amount of time before the terrain takes hold of the momentum.