1975 2 x 50mm (1) Hallmarked silver (1) Gilt Ae - George Stephenson 1781-1848 Father of Railways, bust R, facing /   World's First Public Railway - The Stockton & Darlington. Depicting 1825 Engine No 1. 1975 BR High-speed train, both numbered 0005 in blue case of issue, from Nordon Art Company