signé et daté ‘André Masson 59' (le long du bord droit); signé des initiales, daté et inscrit 'AM Métamorphose Pastel 1959' (au revers). signed and dated ‘André Masson 59' (along the right edge); signed with the initials, dated and inscribed 'AM Métamorphose Pastel 1959' (on the reverse)