Lithograp titled in spanish " Los misterios del alquimista " in French " Les Mystères de l'Alchimiste "  ( from L' Aventure Medicale ) by Salvador Dali.
Signed and numbered 29 /150
Publisher: Levine & Levine for Dalart.
References: Bruce Hochman guide, 217, page 158, and Albert Field, The Official Catalog of the Graphic Works by  Salvador Dali , page  186
Authenticated in the back by Frank Hunter, for Salvador Dali archives.