A bargain even with the travelling to collect it.

Just wondering if anyone has knowledge of these little crossers? Im trying to find its age. Ive (obviously) got the frame and engine numbers but cant find anywhere on the net to date it from?

Oh and if anyone is looking to buy a decent but ageing minimoto.. I know of a Blata going at a reasonable price (it isnt chinese so dont expect any change from 200 quid)