Fuselages were of plywood construction, two layers of thin plywood strips were placed over a mold to form one half of a fuselage shell. The fuselage halves were then glued together, covered with a layer of fabric, and doped. Sounds just like the Mosquito, but no, this was 1915. The process was a patented invention of the Luft-Fahrzeug-Gesellschaft company which used the process on its Roland C.II, photo below. The German Pflaz fighters of WWI used the same construction method under license.
