Early Princess 1950-51
Early 6" coaches with Mk1 couplings. Made from cellulose acetate which would often distort giving them the name "Banana Coaches".
My "plunger" Princess locos have both run on the mainline at Harrow Park, however they will stall on points due to their type of power pickups. They do not run often because the MK1 motors are very difficult to replace.