Hey Mario,
I have what I think is the same machine as yours. The Brass plate on mine reads 'BM 09304', perhaphs the BM reffering to Bommow??? My machine has a little Villiers 2-stroke powering it which I think is a Junior-Deluxe and was manufactured in 1958. I think the engine originally had a kick start or crank handle to turn it over??
And for the record....this little engine is a gem! The most user friendly, reliable two-stroke I've ever played around with. Good on you Villiers....the legacy lives on.