Probably my best recording of an A4 chime. The loco Sir Nigel Gresley was the 100th built Gresley Pacific and was completed in 1937, built by the London and North Eastern Railway.
All the A4s have a distinctive chime whistle. Recorded on 27th November 2010 using a handheld Olympus LS-5. A windy and cold day.
More information about this engine from The Sir Nigel Gresley Locomotive Preservation Trust.