The first one is, according to Roger Gaborieau, the Guelton HG-1 F-PAAN. It's when one turns to Pierre Gaillard that things get complicated. He says that Humbert Guelton produced a first light aircraft in 1939 and a second, F-PAAN, was modified in 1952 with a new registration F-PEAV and a Hirth 504-A2 motor. So is this one HG-1, without identity, and a second HG-1 which was modified, post-war, to become the sole HG-2 F-PEAV? Or is it one aeroplane that started its career as the HG-1 (F-PAAN) and concluded it as the HG-2 (F-PEAV)? I'm afraid that I don't know (but I know a place where I might find those who might!). For the present, Robert came closest so I'm minded to award him the frothing tankard. Please take us away, sir.