The first batch of 35 conversions for use in 1933 and 1934 lacked any means of interior access from the living room to the bedrooms, subsequent conversions were provided with an inside corridor and the early vehicles retrospectively modified in 1936. Space was found for the corridor by "constructing the ends of the beds with a hinge, which could be turned back to permit passage through the doorway". Four other conversions were made, all to bogie equipped stock, 3 were converted into 8 berth camping coaches for use along the Norfolk coast and one became the "Touring Camping Coach".