The Guerchais-Roche T.39/II was something of a landmark at that delightful airfield, St. Cyr. I think it finally faded away on that very spot. When I first saw it, also in '63 if I remember correctly, the hulk of a LeO C-302 (French-built Cierva Autogyro) was dumped nearby, but I believe that survived and is the one currently on display at the Musee de l'Air. In those days there were some real treasures around those Paris airfields — Buc, Toussus, Guyancourt, St. Cyr, Velizy-Villacoublay, Persan-Beaumont, Chelles, Mitry-Mory.