Paul Washburn's SP 4-8-0 #2921
Paul Washburn built this Southern Pacific 4-8-0 class TW-8 steam locomotive with a whaleback tender out of brass and styrene, and provides us with some intermediate construction photos. All photos are copyright © Paul Washburn; used by permission.
Additional References
Southern Pacific TW Class 4-8-0 Pictorial, Volume 11 from Monte Vista Publishing