Halloween HJB: AURIOL, Georges. Cocorico, 1899.
Halloween HJB: COSSARD, Adolphe. Cover of Cocorico [poppies], May 1900.
Halloween HJB: FAVEROL. Cover of Cocorico, July 1899.
Halloween HJB: GOSÉ, Francesc Xavier. Cocorico, Oct. 1, 1900
Halloween HJB: HIRSCHFELD, E. B. (Emil Benediktoff). Cocorico, June 15, 1900.
Halloween HJB: KIENERK, Giorgio. Cocorico, Sept. 15, 1900
Halloween HJB: KUPKA, František (1871-1957). 🇨🇿 Cover of Cocorico, Nº 46, 1901.
Halloween HJB: KUPKA, František. Cocorico, March 1900
Halloween HJB: LÉANDRE. Cocorico, April 15, 1900
Halloween HJB: MICHAEL, Arthur. Cover of Cororico, March 15, 1900.
Halloween HJB: MUCHA, Alfons Maria. Cover of Cocorico, 1902.
Halloween HJB: POPINEAU, Louis. Cover of Cocorico, Sept. 1899.
Halloween HJB: STEINLEN, Théophile-Alexandre. Advertising for Cocorico Magazine.
Halloween HJB: de FEURE, Georges. Cover of “Cocorico”, Sept. 15, 1901.
Halloween HJB: POPINAUX. Cocorico, Jan. 15, 1900