Yamaha F1 archive material from Activa Technology Limited, comprising a collection of various Herbie Blash correspondence folders, including Brian Ha

Yamaha F1 archive material from Activa Technology Limited, comprising a collection of various Herbie Blash correspondence folders, including Brian Hart Ltd engine development notes 1992, John Judd Engine Developments Yamaha F1 engine development notes for 1992 and 1996, Jardine 1992-93 Yamaha PR folder for Sasol Jordan & Tyrrell F1 teams, with illustrations, MBK 1996-97 F1 Assistance, Damon Hill Arrows-Yamaha 1997 season GP reports, plus various Tyrrell and Yamaha F1 decals, includes some faded fax transmissions; together with a Yamaha OX-99 supercar PR campaign folder with photos, plus a McLaren-F1 launch invite, GTR parts listings and Momo correspondence (qty.) Activa Technology was set up by Yamaha to handle its Formula 1 engine division with Blash as Sporting Director. Utilising the old Brabham-MRD factory, it supplied engines to the Jordan, Tyrrell and Arrows F1 teams in turn and Yamaha-powered cars went on to score a total of 22 World Championship points.