Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Hi-Rail Wheels) 20-3779-1
Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Scale Wheels) 22-3776-2
Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Scale Wheels) 22-3777-2
Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Scale Wheels) 22-3778-2
Union Pacific O Scale Premier 4-8-8-4 Big Boy (Original) Steam Engine With Proto-Sound 3.0 (Scale Wheels) 22-3779-2
Union Pacific O Scale Premier 4-8-8-4 Big Boy Steam Engine (Oil Burner) With Proto-Sound 3.0 (Hi-Rail Wheels) 20-3775-1
Union Pacific O Scale Premier 4-8-8-4 Big Boy Steam Engine (Oil Burner) With Proto-Sound 3.0 (Scale Wheels) 22-3775-2