Philadelphia Bethlehem & New England O Gauge RailKing SW-1 Switcher Diesel Engine w/Proto-Sound 3.0 30-20814-1
Union Pacific G Gauge RailKing One Gauge 4-8-8-4 Big Boy Steam Engine (Oil Burner) With Proto-Sound 3.0 70-3048-1
Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Scale Wheels) 22-3808-2