@cymrurails: Sprung buffers! A beautiful detail on Dolgoch, the railway's No. 2 engine. These aren't just for looks—they're a crucial piece of engineering that allows the locomotive to handle the Talyllyn Railway's tight curves. Another fascinating feature on display at the Awdry Extravaganza! #AwdryExtravaganza #TalyllynRailway #Dolgoch #RailwaySeries #ThomasTheTankEngine #ThomasAndFriends #Sodor #WelshRailway #HeritageRailway #SteamLocomotive #RailwayEvent #NarrowGauge #RailwayEngineering