Tintin in Dutch). 40,000 copies were released in French, and 20,000 in Dutch. For Kuifje, a separate editor-in-chief was appointed, Karel Van Milleghem. He invented the famous slogan "The magazine for the youth from 7 to 77", later picked up by the other editions. (Van Milleghem gave Raymond Leblanc the idea for the animation studio Belvision, which became the largest European animation studio, producing ten feature-length movies, including a few featuring Tintin. It was Van Milleghem who also introduced Bob De Moor to the magazine and to Hergé. De Moor became a regular in the magazine and the main artist in the Studio Hergé.) In 1948, the magazine grew from 12 to 20 pages and a separate version for France was launched. A group of new young artists joined the team: the French Étienne Le Rallic and Jacques Martin, Dino Attanasio and the Flemish Willy Vandersteen. For decades, Hergé had artistic control over the magazine, even though he was sometimes absent for long periods and new work of his became rarer. His influence is highly evident in Vandersteen's Suske en Wiske for which Hergé imposed a stronger attention to the stories, editing, and a change of art style. The Tintin-voucher In order to keep its readership loyal, Tintin magazine created a sort of fidelity passport, called the "Chèque Tintin" in France (Tintin-voucher) and "Timbre Tintin" in Belgium (Tintin-stamp), which was offered with every issue of the magazine, in every comic album by Le Lombard, and on many food products as well. These stamps could be exchanged for various gifts not available in commercial establishments. Other brands, mostly from food companies, affiliated themselves with the Tintin voucher system: they could be found on flour, semolina boxes, etc. A Tintin soda existed, and even Tintin shoes. The French Railways Company went as far as to propose 100 km of railway transportation for 800 stamps. Among the gifts, there were super chromos extracted from the magazine issues, or original art. At the time the vouchers were initiated, the magazine was selling 80,000 copies in Belgium and only 70,000 in France. Due to the success of the vouchers, the circulation in France quickly rose to 300,000 a week. The vouchers disappeared by the end of the 1960s. The 1950s In the 1950s new artists and series showed up: Tibet with his humorous western Chick Bill and his detective series Ric Hochet Raymond Macherot, with