Under the standardisation programme of the Deutsche Reichsbahn Gesellschaft (DRG), and as a development of wooden-bodied (1921) and steel-panelled (1922 to 1925) carriages, several types of 2-axle Standard Corridor carriage with riveted bodies were produced between 1926 and 1930. They gained the nickname ‘thunder boxes’ due to the droning noise when moving. The Vereinigte Westdeutsche Waggonfabrik Köln built 36 421 in 1929. It served in practically its original form until the beginning of the 1960s. Like many others of its type, it was then converted to a departmental workshop and rest-room. The interior fittings were completely removed and replaced by messing and workshop areas. Roller-shutters allowed large items to be loaded. Before being bought and restored as a passenger coach by Eisenbahn-Tradition in 1990 the coach was stationed in Neuss. In 1992, this was the first coach to be lovingly restored by our members. First, the 3rd-class got back its wooden seating; in 2nd-class there were upholstered seats which we had acquired from SNCB (Belgian State Railways). Other Belgian parts such as interior lighting, compartment doors and luggage-rack netting were also put to use. Over the years since then our ability to restore carriages has improved. First we replaced the Belgian lighting with fittings, of Deutsche Reichsbahn style, we had made ourselves following original drawings. Over the winter of 1995 / 96 followed Reichsbahn-typical wooden seating with parts and netted luggage racks for the 3rd-class compartment and replacement of the TWE bench seating. By 2004 the wear and tear on the Belgian upholstery in 2nd-class could no longer be ignored. The seats were re-upholstered with soft, striped cloth. The compartment walls also received, to window height, a soft covering. Above this is historically-accurate Pergamoid wallpaper. Lastly, the Belgian luggage nets were replaced by those in the Reichsbahn style.