Sam Szafran (Samuel Berger, known as) (1934-2019 )Staircase. 2013. lithograph in colors. Very nice proof on thin japon, numbered in pencil and signed in red pencil. Edition at 75 proofs. Included in the box containing the book Sam Szafran, Entretiens avec Alain Veinstein (tirage de tête), Paris, Flammarion, 2013. Sheet : 23,2 x 14,8 cm . Box: 24,5 x 16,5 cm.