Picked up a UK built Super Course 12 Speed. Serial number WD0004540. Would it be a 1980? It's speced out just like a 1978, Gold paint 531 butted main tubes and Suntour forged drop-outs. Same parts except for sidepull brakes and the extra cog. Never seen a UK built one of these, it looks more like the early-mid 80's Japanese one.