The Sou M is a historical coin that was issued in the French New World, specifically linked to the region that would become part of the United States. This coin, produced in Rouen in 1742, is representative of early colonial currency used during French rule in North America. Collectors often seek such coins for their historical significance and connection to the colonial trade dynamics between France and its territories. The Sou M is particularly valued among numismatists interested in the monetary systems and economic history of the 18th century.

Item Denomination Series Year Mint
1742-B Sou M Sou M French New World 1742 Rouen