HERGÉ. The Adventures of Tintin - The Secret of the Unicorn. Casterman, 1950. Album in-4, polychrome publisher's cardboard, red spine, 4th plate B4, dark blue endpapers. (boards soiled and slightly stained, scratches, shock to the second board, rubbed headpieces and corners, inner spine split, number written in pencil on the first board, soiling in the margins) Joint : HERGÉ. Les Aventures de Tintin - L'étoile mystérieuse. Casterman, 1961. Album in-4, polychrome publisher's cardboard, red spine, 4th plate B30, light blue endpapers. (first cover and headbands rubbed, slight stains in the margins)