Just taken ownership of this beauty(?).
From lots of Googling and this site I think it's a 14" made in 1960/1.
Most obvious things it is missing are an exhaust and the recoil starter. It came with a bit of knotted rope so the missing starter isn't a big issue...
I've Googled the engine a bit and I think it's called a Villiers lightweight 50cc but I'm not sure what model number that makes it.
Any idea where I might get a silencer to fit this engine? It looks like there are 3 studs shared between both the inlet and exhaust manifolds so I think it the flange needs to be a particular shape.