Spirou #1303 was published by Dupuis on April 1, 1963, as part of a series that began in 1938. Charles Jadoul and Eddy Paape write, and art comes from André Franquin, Arthur Piroton and Eddy Ryssack. This 132-page issue features Spirou, Gaston, Fantasio, Bill and Marsupilami, among 25 characters cataloged on VerseDB.