Pif Gadget #1661 was published by Editions Vaillant on April 1, 1977, as part of a series that began in 1945. Michel Motti and Roger Lécureux write, and art comes from André Chéret, Guillermo Mordillo and Louis Cance. It features Pif, Hercule, Placid, Muzo and Pifou, among 7 characters catalogued on VerseDB.