LIBC02. BR Riddles Standard Class 4MT 2-6-4 Tank Loco in Plain Black. This is by Sancheng for Bachmann Brass and has excellent cab detail. The model has been test run only (and runs fine) but has damage to the rear bunker as shown in the photos. Also one rear step is missing on the left hand side. The prototypes were built between 1951 and 1956 at Brighton Works (130) Derby Works (15) and Doncaster Works (10). £950.