I got several copies, some referred to me at the Church site itself.



A Recording of the Bow Bells made in 1926 has been used by the BBC World
Service as an interval signal for the English Language broadcasts since
the early 1940s. It is still used today preceding some English
broadcasts.

I found what you are looking for here :

http://www.inspirewebdesign.com/home..._lester_10.mp3