Frontier Bank, 1925 Issue, Unlisted "Tientsin" Branch Variety. China. 1925. 10 Yuan, P-S2573s Unlisted Specimen, (S/M #P42-6?). Specimen banknote, Green and m/c with stream with houses at center, back green. Specimen overprint, "00000" serial numbers 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. 10 Yuan, P-S2573s Unlisted Specimen, (S/M #P42-6?). Specimen banknote, Green and m/c with stream with houses at center, back green. Specimen overprint, "00000" serial numbers and POC's, Choice to Gem Uncirculated, Exceptional and desirable note that is only available in specimen and in superb grade. ABNC.