Peter Lockwood at the apex of Brittens on his 500cc Matchless from 1961 - Les Graham Memorial Lansdowne Classic race 1, Oulton Park, October 2009 Posted by Rich Crawford Photography on 2009-10-19 17:59:03 Tagged: , Matchless , G50 , Matchless G50 , Grand Prix , GP Bike , 500cc Grand Prix , 500cc , MotoGP