LNER Class A4 2509 Silver Link was a 4-6-2 "Pacific" Steam Locomotive built in 1935 for the London and North Eastern Railway.

It was the first of the Streamlined Class A4s built to haul express passenger trains on the East Coast Main Line (ECML).

[1] The record provoked the LNER and their chief rival the London, Midland and Scottish Railway (LMS) into a highly competitive speed war, each attempting to outdo the other by building ever faster locomotives.

Silver Link was named after a reference to love in Sir Walter Scott's poem The Lay of the Last Minstrel, which reads:[2] True love's the gift which God has given To man alone beneath the heaven; It is not fantasy's hot fire, Whose wishes, soon as granted, fly; It liveth not in fierce desire, With dead desire it doth not die; It is the secret sympathy, The silver link, the silken tie, Which heart to heart, and mind to mind, In body and in soul can bind.

It was not preserved after withdrawal and was broken up for scrap at Doncaster Works on 7 September 1963, on the same site where it had been built nearly twenty eight years earlier.