Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Hi-Rail Wheels) 20-3808-1
Union Pacific O Scale Premier 4-8-8-4 Big Boy Steam Engine (Oil Burner) With Proto-Sound 3.0 (Scale Wheels) 22-3807-2
Union Pacific O Scale Premier 4-8-8-4 Big Boy Steam Engine (Oil Burner) With Proto-Sound 3.0 (Hi-Rail Wheels) 20-3807-1
Wheeling & Lake Erie O Scale Premier 2-8-4 Berkshire Steam Engine w/Proto-Sound 3.0 (Scale Wheels) 20-3805-1
Wheeling & Lake Erie O Scale Premier 2-8-4 Berkshire Steam Engine w/Proto-Sound 3.0 (Hi-Rail Wheels) 20-3806-1