Union Pacific O Scale Premier 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3680-1
Union Pacific O Scale Premier 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3681-1
Clinchfield O Scale Premier 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3682-1
Denver & Rio Grande O Scale Premier 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3683-1
Union Pacific O Scale Premier 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3684-1
Union Pacific 4-6-6-4 Challenger Steam Engine w(Smoke Deflectors) w/Proto-Sound 3.0 (Scale Wheels) - Union Pacific (Black) (Coal Tender) <p> Cab No. 3943 22-3680-2
Union Pacific 4-6-6-4 Challenger Steam Engine w(Smoke Deflectors) w/Proto-Sound 3.0 (Scale Wheels) - Union Pacific (Two-Tone Gray w/Silver Stripes) (Oil Tender) <p> Cab No. 22-3681-2
Denver & Rio Grande 4-6-6-4 Challenger Steam Engine w/Proto-Sound 3.0 (Scale Wheels) - Denver & Rio Grande (Coal Tender) 22-3683-2
Union Pacific 4-6-6-4 Challenger Steam Engine w(Smoke Deflectors) w/Proto-Sound 3.0 (Scale Wheels) - Union Pacific 22-3684-2
Chesapeake & Ohio O Scale Premier 4-8-4 Greenbrier Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3675-1
Chesapeake & Ohio O Scale Premier 4-8-4 Greenbrier Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3676-1
Chesapeake & Ohio O Scale Premier 4-8-4 Greenbrier Steam Engine w/Proto-Sound 3.0 (Hi-rail Wheels) 20-3677-1
