20 Fen

These issues belong to the Central Mint's nickel program launched under the Nationalist government's currency reform of 1935, which abolished the silver standard and introduced a managed fiat system backed by the "fabi" currency. Production ran across the late 1930s as Japanese military pressure steadily constricted the territory under Nationalist control, and the Central Mint itself was forced to relocate inland — first to Chungking — disrupting output and creating meaningful variation in strike quality across the date range.