Silverstone Auctions Ltd Lot soldEstimatePrice on Request See all lots Signed Ferrari metal garage sign. Silverstone Classic Sale 2018 | 21 July Summary Lot number 373 Location Description Guide price: £0 - £0. <p>Metal Ferrari prancing horse measuring 2ft high, hand signed by Ferrari works drivers, Nigel Mansell CBE and Jody Scheckter. With a Certificate of Authenticity.</p><p> </p>