This is actually a 1985 (84?) custom built Frontiera touring bike from Border Cycles in Carlisle in 531ST tubing with engraved lugs, etc.
It originally had full Record groupset with TA chainset, but for 30 years it was my only bike and after various crashes, winter weather and simply wanting 'upgrades' it's been heavily messed with. A bit like Trigger's Broom. Most recently it had the steerer replaced and a respray at Hewitts. Original is the frontwheel, rear rim, Dia Compe cantilever brakes, Blackburn racks, panniers, seatpost, saddle . . .
Still impressed with the verstility of the classic touring bike - it's taken me camping all over Europe and the States, audax and PBP, offroad on the Hell of the North Cotswolds, road training camps in Spain and a lovely day out doing Paris Roubaix.