26 Formula 1 driver signatures plus 50 from various other formulae, as obtained in the late 1970s to early 1980s, including Nigel Mansell, Jody Scheckter, Keke Rosberg, Nelson Piquet, Ayrton Senna, Jack Brabham, Riccardo Patrese, John Watson, Stirling Moss, Jacques Laffite, Carlos Reutemann, all in ballpoint pen on 65 autograph book pages (complete listing online)