The Portland Collection, Commemorative Medals, Transport: Bridges, UK, Robert Stephenson, the Completion of the Britannia Tubular Bridge, copper medal, 1850, by L. C. Wyon, bust of Stephenson r., rev. view of the bridge with a train emerging at l., past the lion guardians, 58mm. (BHM.2402; Eimer 1441; Moyaux 36; JT 164a; Swan 67-9), in Victorian fitted case, choice extremely fine
Robert Stephenson (1803-1859), engineer, son of George Stephenson, designed the Britannia Tubular Bridge crossing the Menai Straits to Anglesey to link the port of Holyhead to the railway. It takes its name from the Britannia rock on which the central support was built. Following a fire in 1970 the bridge was converted to carry both road and rail services.