Lionel 6-29139 O Gauge Legends of Lionel Madison Passenger Car "Kughn" - NOS N UniTrack The best way to tell

The best way to tell them apart is to look for the circulators on the firebox just above the running boards

Antique White

The M41 features a clamping collet that holds the flex cable tightly and centers it perfectly with the motor's output shaft for the smoothest operation possible

Requires 2938X for use with Traxxas ID Batteries

Lightweight and compact design -- great for traveling

Lionel 6-29139 O Gauge Legends of Lionel Madison Passenger Car "Kughn" - NOS N UniTrack The best way to tellLionel 6 29139 Legends of Lionel Madison Passenger Car "Kughn" Scale: O Gauge New Old Stock Features: O Gauge Detailed phenolic body to recreate the mass of the original Madison cars Die cast car ends Stamped metal spring loaded swinging doors Die cast trucks Die cast operating knuckle couplers Authentic undercarriage detail Interior lights Passenger silhouettes in the windows Metal wheels and axles Length: 15" long