Engine is a Check manufactured "MVVS" 12cc engine, ABC, With ballbearings. Carb is a German HB (Helmut Bernhardt) with 13mm neck .Silencer might to be an British "Irvine" as Irvine has narrow silencer fittings compared to OS and ASP.. Both HB and MVVS stopped producing glow engines many years ago ...sadly! But I have lots of spares for MVVS engines if you are interested and some engines too.