The O Gauge 3-Rail MTH 20-3047-1 is a model of the NYC 4-8-4 Niagara Steam Locomotive #6025, equipped with Proto-Sound 2.0 technology. This model features detailed craftsmanship representing the iconic New York Central Railroad's Niagara class locomotive, known for its powerful 4-8-4 wheel configuration and historical significance in mid-20th-century American railroading.