Breguet 390 T commercial airplane (French) : a ten-seat all-steel sesquiplane
This is a 1931 NACA aircraft circular, issued by the NASA Technical Reports Server collection, describing the French Breguet 390 T, a ten-seat all-steel sesquiplane airliner. The pictures are black-and-white technical photographs and drawings of engine bearers, wing spar fittings, fuselage structure and the cabin door, useful to a designer wanting raw industrial engineering imagery.
