This 4 Francs deep-blue definitive from France, issued during the early 1940s Vichy period, features the profile of Marshal Philippe Pétain in finely engraved linework. Part of the well-known “Pétain” series, it circulated widely during World War II and remains historically significant due to its association with wartime postal operations. Collectors value these issues for their numerous printings, subtle shade variations, and postmarks from the occupied and unoccupied zones. This used example shows clear wartime cancellation and strong impression detail, making it a desirable piece for collectors of WWII-era France and postal history.