Silverstone postal covers, Various signed limited edition Silverstone Formula 1 commemorative covers, mostly from limited editions of 100 and bearing

Silverstone postal covers, Various signed limited edition Silverstone Formula 1 commemorative covers, mostly from limited editions of 100 and bearing a single signature, the collection comprising two 1996 British Grand Prix signed by Tony Brooks (numbered 41/50) and BRDC President the Duke of Kent, two 50 Years of Formula 1 signed by Phil Hill and Jean Alesi, a 2001 British GP non-philatelic Ferrari cover by Clay Regazzoni, sold with a similarly signed postcard, two non-philatelic 2002 S.F. Edge-Gordon Bennett Trophy Centenary by Damon Hill and Jackie Stewart, a third by BRDC Directors Howden Ganley, John Surtees and John Watson, plus another 1996 British GP signed by both Frank Costin and Keith Duckworth, no edition number and later franked Cosworth Engineering 2001, a non-philatelic 60 Years of Formula 1 signed by Mario Illien and Paul Morgan of Ilmor, numbered 50/50 (11)