Between world wars, he illustrated books for authors including Colette, Maurice Genevoix, and Pierre Loti, and created ceramics at Henriot in Quimper, at the Manufacture nationale de Sèvres, and at Villeroy & Boch in Sarre.
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In 1921 Méheut became the French Ministry of Defence's official painter and in 1925 began decorating commercial passenger ships, including the SS Normandie.