Prior to 1971 all British pricing was in good old LSD = Librae Solidi Denarii. This latin could be used to a name a Hetchins model. But have you seen the Experto Crede on ebay looks like the guy who painted the headbadge was on the other LSD!
Thats all for now. Keep those wheels spinning, in your memories if not still on the road. Be lucky Mick Butler Huntingdon UK.