25 Yuan Bank of Chinan

The Bank of Chinan (Chi-Nan Yinhang) was a Japanese-sponsored regional bank established in occupied Shandong province in 1938, one of several puppet financial institutions set up to displace Nationalist and pre-war Chinese currency across North China. By 1942, the broader Japanese occupation monetary apparatus was under increasing strain — the military's own printed currency had severely eroded public confidence, and regional banks like Chinan were issuing notes to absorb that pressure locally.

The S-prefix Pick designation flags this as a specialized or regional issue. Documentation on the 25 Yuan denomination specifically is thin, which likely reflects limited surviving specimens rather than a large original print run.