Signed and inscribed "This is not by me" lower right in marker. Edition called "European Artist's Proof Edition". The portfolio of “This Is Not By Me” is mentioned in the catalog “Andy Warhol Vetrine” edited by Achille Bonito Oliva, Silvana Editoriale, 2014 and an example of different coloring is published in the catalog of the exhibition “Pop Icons”, 20 January - 6 February 2015, Galleria Restelliartco, Rome, authorized by 'The Andy Warhol Foundation for the Visual Arts,Inc' by SIAE 2015, Editore Factory Additions (New York), printed by Bill Miller's Wallpaper Studio (New York). In 1985 a portfolio was created which, like the one published in 1970 by Sunday B. Morning, was not authorized by the foundation, known as the "European Artist Proof Edition". Publication: F. Feldman, J. Schellmann, C. Defendi, “Andy Warhol Prints: A Catalog Raisonne 1962-1987”, Distributed Art Pub Inc., 2003, N.II. 22-31.