The third of Velocette's overhead-valve, high-camshaft, single-cylinder designs, the 500cc MSS was announced in 1935, its engine being housed in a new frame derived from that of the racing KTT. The model disappeared from Veloce Limited's range in 1948 while the company concentrated on the LE, reappearing in 1954 with a new swinging-arm frame and Hall Green's own telescopic front fork. Its engine too was updated, gaining 'square' bore and stroke dimensions of 86x86mm together with an alloy cylinder barrel and 'head. This MSS carries a tax disc that expired in March 2002, and almost certainly has not been used since then. The machine will require re-commissioning and the customary safety checks before returning to the road. There are no documents with this Lot, which is sold strictly as viewed.