1918 German Empire Calw 10 Pfennig Iron Notgeld (NGC MS63) Historical Background: Minted by the city of Calw in Baden-Württemberg (the birthplace of Nobel laureate Hermann Hesse). Issued during the final year of World War I (1918), this coin is a prime example of Notgeld (Emergency Money). As the German Empire diverted all strategic metals (copper and nickel) to the war effort, local municipalities were authorized to issue their own substitute currency to alleviate severe coin shortages. Hightlights: 1. Unlike silver or gold, iron is chemically "unstable" for coinage. Most 1918 iron coins found today are pitted, rusted, or dark. To achieve an MS63 (Mint State) grade, this coin must have been stored in a near-perfect microclimate for 100+ years. It represents a rare opportunity to see the "original luster" of a wartime iron strike—a stark, industrial aesthetic that is rarely preserved. 2. Calw is not just any German town; it is a cultural landmark famously known as the home of Hermann Hesse. Collectors of "Topical Notgeld" often seek out Calw issues because they link the harsh reality of WWI economic collapse to the romantic, literary history of the Black Forest region. This adds a layer of "storytelling value" beyond mere metal content. 3. Many Notgeld issues were printed on paper or porcelain, but the Iron 10 Pfennig represents the final, desperate attempt of the German Empire to maintain a functional metallic currency system before the hyperinflation of the 1920s. Owning a certified high-grade iron piece is owning a physical artifact of the "War Economy" (Kriegswirtschaft) at its breaking point—making it a cornerstone for any specialized collection of WWI or German monetary history.