O Gauge #6-31941 – Winter Wonderland Railroad Train Set – C-7 (Everything Works Great). A festive Lionel O Gauge train set (#6-31941) featuring the Winter Wonderland Railroad. This complete set is perfect for collectors, operators, or holiday display layouts. Model: Winter Wonderland Railroad Train Set. 2-4-2 Steam Locomotive with operating headlight and smoke unit. Track and transformer included. Operating headlight and smoke unit confirmed. Runs smoothly with transformer power. Perfect for holiday or winter-themed layouts. ? Condition Notes (C-7). Excellent condition – everything works great. Light wear consistent with age/use.