unique to the fast series is the color switch mechanic, where players collect energy to switch between two colors. dictionary guide to united states pottery and porcelain: ninth and twentieth century. 1848 and is thought to be by the architect i.a. the arch is  wide, with the concrete road deck supported by eight 12-inch walls rising from various points on the arch. the combined operation put on fairly clean shows, as had the eastern wheel. this work produced a pyramid-shaped design with a flat underside and short wings. the bikes require attention too, with a free cleaning service and mechanics on hand. 