I made the exhaust from aluminum tubing. NAT numbered their planes as they got them, thus this is their 43rd ship. At one time it had an enclosed cockpit but the pilots hated it, thus it was changed back to an open hole! Decals by Vintage Flyer.
The aft mail bin just forward of the pilot's cockpit could be quickly converted for carry a passenger. Sometimes that person just sat on the mail sacks!
