Frontier Bank, 1925 Issue, Unlisted "Tientsin" Branch Variety. China. 1925. 1 Yuan, P-S2569s Unlisted Specimen, (S/M #P42-61?). Specimen banknote, Brown and m/c with hut at center, back brown. Specimen overprint and POC's, Choice to Gem Uncirculated, Exceptional and desirable note that is only available in specimen and in superb grade. ABNC. Frontier Bank, 1925 Issue, Unlisted "Tientsin" Branch Variety. China. 1925. 1 Yuan, P-S2569s Unlisted Specimen, (S/M #P42-61?). Specimen banknote, Brown and m/c with hut at center, back brown. Specimen overprint and POC's, Choice to Gem Uncirculated, Exceptional and desirable note that is only available in specimen and in superb grade. ABNC.