An engraving as shown in the Illustrated London News (Vol 62/1 p 64). The Great International Railway Suspension Bridge was built by John A Roebling (1806-1869) who went on to design New York's Brooklyn Bridge. The first locomotive crosed the bridge in March 1855 at 5mph. The bridge was the first to disprove the asumption that suspension bridges were insufficiently rigid for road traffic, using the wire-rope stays as stiffening. The bridge was reinforced by converting it into a steel arch in 1898. The engraving is from a painting by the Danish artist Ferdinand Richardt.
© Science Museum / Science & Society Picture Library