I was right off the scent. I assumed that it dated from the late forties or early fifties - which is where I was looking. Do you have any more information concerning Eleaume RE.1, Walter? My library and the internet is silent and, according to the index, it's not even mentioned in Trait d'Union.
I assume, Uli, that you didn't intend to leave the registration showing on the Iniziative Industriali Italian Sky Arrow 600 Sport!