This is a side corridor second with eight compartments, four on each side of a cross corridor. Two toilets are situated at one end of the coach. The vehicle has a seating capacity of forty-eight persons with the seat arm-rests down. It has B1 type bogies. It is identical to 25500 and was withdrawn by British Railways at Whittlesea in May 1976. It arrived at Quainton with other stock by a track slew of the BR line in July 1977, for details of stock arriving in this delivery see the Visitors section.