D267 carriages were built in two batches in 1910-11 and 1911-13. The earlier batch, which is not the subject of this kit, was traditionally panelled and electrically lit from the start. The later carriages (91 built) were of the more modern toplight style and were originally gas lit. It is likely that conversion to electric lighting was made sooner rather than later, and probably on the Wolverton single battery system. The kit provides only for electric lighting. According to the diagram book none of the toplight carriages were dual braked. They were found all over the system strengthening many services and had long lives in revenue service, lasting beyond the grouping right through the LMS and into BR. One carriage was exported to Ireland in 1948 and became GNR(I) no. 480. Withdrawals began in the 1950s and the last had gone by the end of 1957 although some carriages had extended lives as Camping Coaches. A few served as Great War ambulance carriages, and did not return.