KRM-4DD-OO-S-2-B Bulleid Class 4DD Double Decker 4 Car EMU 4002/4902 BR Blue with Full Yellow Ends - Sound FittedIn 1948 BR asked O. V. S Bulleid to come up with a solution to help reduce overcrowding on suburban routes to and from London. In 1949 2 Double Deck units rolled off the production line, numbered 4001 4002 these were an experiment that lasted 22 years and finished on 1st October 1971. In 1970 both units were repainted to BR Blue and renumbered to 4901 and 4902. We will be producing both running numbers as 4 car packs. There will be 2 power cars, all