The role of the goods guard is easily underestimated - they had a crucial job to do managing coupling tension on a loose coupled train. A fantastic display inside a brake van at Bucks Railway Centre, Quainton Road, opened my eyes on this, which I hadn’t really twigged before. The work involved in getting a long train over a difficult curved and steep road such as Portadown to Derry or Sligo to Enniskillen was challenging to put it mildly…..