Lefthand Accurately scaled and spaced ties. Blackened metal frog allows powering by Atlas Snap-Relay. Frog Angle is true #6 - 9°, 30'. . Frog and guardrail flangeways set to NMRA standards. New points eliminate rivets, providing better electrical contact and improved appearance. . Four spikes per tie, staggered like U.S. prototype. Designed for under-table switch machines or manual ground throws. Concealed nail holes. Designed for use with common rail systems. All Atlas code 83 has brown ties and nickel silver rail.