According to the UTA NCC Carriage diagram book these were class V12. NCC 401-403 were ex DNGR 24-26 and were 50ft long and 9ft 9 wide after rebuilding in 1933. Built at Wolverton 1899/1900 and 403 destroyed by Belfast Blitz 1941 and 401/2 later became 605/6 and seem to have gone by early 1960s.