1976, 1977, 1979 and 1980 USA Grand Prix official Formula 1 Watkins Glen event posters, all four bearing specially commissioned artworks after Michael

1976, 1977, 1979 and 1980 USA Grand Prix official Formula 1 Watkins Glen event posters, all four bearing specially commissioned artworks after Michael Turner, all now rolled, fine condition, 1977 and 1979 originally issued folded, 71 by 51cm., 28 by 20in., 1979 94 by 50cm., 37 by 20in.,1980 84 by 43cm., 33 by 17in.; sold with the 1977 official programme, 116-pages US Quarto, with racecard insert, plus five unused tickets with counterfoils for the 1977 and 1980 events, and a 1956 official programme for the 9th Watkins Glen Sportscar GP, 36-pages US Quarto, with racecard insert (11)