Fifty of these vans were built in 1934 for use on lightly-laid branch lines, and some spent their entire life on the same line. They had shallower solebars than the 25 ton vans (as this was where the scrap "ballast" was located), and RCH-style axleboxes. Two were cut down for use on the Canterbury & Whitstable line (perhaps used with the LSWR "grain" wagons mentioned under C79 above). Two more were sent to the Isle of Wight, where one remained in use until about 2000. Several others were early transfers to engineering use – with a large toolbox on one platform. One of these, DS455, was still to be seen in the Salisbury area about 1990.