While reading an old Modern Railways I came across mention of an accident in 1969 involving BR's only Kershaw TL-B3 lining machine (numbered KLM.1). It was destroyed but the report mentions it was introduced in September 1964. Does anybody know anything about this short-lived machine? Presumably it was trialled alongside the first of the Plasser AL-203 design (originally numbered PLM.1 later DX75017 of 1964). I've looked everywhere for a photo but with no luck.