This commemorative 25 centimes stamp from France (1966) honors the bicentenary of Lorraine and Barrois’ reunion with France (1766–1966). The design features a detailed portrait of Stanisław Leszczyński, Duke of Lorraine, alongside the coats of arms of Lorraine and Barrois. In the background stands the grand architecture of the ducal palace, symbolizing the region’s rich cultural heritage. Issued by the French postal service, this stamp marks a key historical milestone when these territories officially became part of France. A significant piece for collectors of French history, regional commemoratives, and heraldry on stamps.