the london, midland and scottish railway (lms) inherited several styles of coaching stock from its constituents. stock built by the lms itself can be categorised into three separate periods, numbered i to iii. ==coaches inherited from pre-grouping companies== various types of coaches were inherited from pre-grouping companies. ===ex-glasgow and south western railway=== a 1914 seven-compartment side-corridor third built by birmingham railway carriage and wagon for the glasgow and south western railway is preserved by the scottish railway preservation society at falkirk.harris (1976) ===ex-highland railway=== from 1897 bogie stock was generally introduced for main line services on the highland railway. however, six-wheelers appeared as late as 1908. an example of a six-wheel composite coupÃ©, no. 89, latterly in service stock, is preserved by the scottish railway preservation society at falkirk.harris (1976) ===ex-lancashire & yorkshire railway=== many hundreds of carriages built for the l&y (mainly at newton heath works) came into lms stock, including some 6-wheel saloons. newton heath also built lms designs for a few years in the 1920s. currently two ex-l&y carriages taken into lms service have been preserved and restored for irregular public use on the worth valley railway, although one is mounted on a br underframe built at wolverton in 1956. these are owned by the lancashire & yorkshire railway trust. ==coaches built by the lms== the design and building of lms coaches followed a very standardised pattern. very many types of coaches were built to suit the various services and needs but, in general, the progression of design features was a logical one. three quite distinct periods of design can be recognised, the last of which continued until after nationalisation of the railways in britain. ===period i (1923-1928/9)=== the general styling of lms period i coaches followed much the same ideas as were prevalent elsewhere in britain. they were wooden framed and panelled, had a fully beaded body with a semi-elliptical roof, doors to all compartments of side-corridor coaches, and were mounted on a steel underframe derived from the final midland railway design. window ventilation was mainly by droplight. roof ventilators were generally of the torpedo type. the coaches were fitted with non-automatic screw couplers and gangwayed stock made use of scissors-type british standard pattern corridor connection (as also used on the great western railway). most coaches ran on two four-wheel bogies which were of a 9&nbsp;ft 0 in wheelbase single bolster design which hardly changed for the whole of the company's life. some special vehicles ran on twelve wheel chassis and the six-wheel bogie 
London,_Midland_and_Scottish_Railway Railway_coaches_of_the_United_Kingdom