A 1929 James V twin dirt track bike, one of only 12 built and most likely the only survivor, made £37,000 at a sale of the collection of the late Noel Clark conducted on August 17 by H J Pugh & Co of Ledbury, Herefordshire.
The sale of the collection drew large numbers of enthusiasts who bid on all items.
A framed selection of 28 speedway programmes made £340, a replica Martin rolling chassis £1850.
Engines proved popular with ohv JAP versions making up to £4000 and a JAP twin OHC display engine considerably more at £6000.
Some 34 speedway and grass track bikes came up for sale with the shale shifters outselling the grass trackers.
An ESO S45 made £4800, a rare Rotrax with JAP twin OHC engine selling for £12200 and a 1931 Rudge JAP in restored condition a little more at £12500.
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