5 Chiao / 5 Gyo Ta Chiang Bank / Dagiang Ingxan

Ta Chiang Bank (大江銀行) was one of numerous regional banks operating under Japanese-occupied China's fragmented financial administration during the final year of the Pacific War. By 1945, Japanese imperial authority in the region was visibly collapsing, and currency issued through nominally Chinese institutions like this one was a mechanism for extracting local economic resources while maintaining a veneer of indigenous banking. The Pick S-series designation places this firmly in the specialized category of Chinese provincial and local issues — a classification that reflects how provisional and geographically constrained this bank's authority actually was.

Documentation on Ta Chiang Bank is thin, and its precise operational jurisdiction remains contested among researchers.