Silverstone Auctions Ltd Lot soldEstimatePrice on Request See all lots Nigel Mansell CBE signed 'Mobil 1' poster Silverstone Classic Sale 2018 | 21 July Summary Lot number 390 Location Description Guide price: £0 - £0. <p>1990's period 'Mobil 1' promotional poster. 100 x 70cm. Hand-signed by Nigel Mansell CBE, framed and glazed with a COA.</p><p> </p>