The website is very interesting. However, I would like to see a more complete and detailed timeline for all the models and distinguishing features. When each model was introduced, discontinued, re-introduced, what changes, etc. The old catalogues are fine, but incomplete, with a 20-year gap between 1937 and 1957, the heyday of the British lightweight bicycle.
With all the high tech advances in bicycle design and manufacturing in the last three decades, it's heart warming that the traditional leather saddle has survived and, indeed, has gained popularity in the last few years. This has to be on account of Brooks and probably its acquisition by Selle Royal to keep the flame alive.