On the left: ‘Matin de l’autoroute’, lithograph, 1965, 56 x 76 cm, edition of only 30 (Sold). In the middle: ‘Signal C’, silkscreen, 1976, 28,5 x 40,5 cm, edition of 150. On the right: ‘Ciel et le ciel’, lithograph, 1970, 50,5 x 66,2 cm, edition of 100.