Description: China, 1948. 10,000 Yuan, P-363sf and P-363sb Unlisted Color Trials (Not listed on PMG holders). Uniface Front and Back "Specimens", Face Blue with portrait of SYS in middle, back blue with bank building, red "00000" serial numbers, POC's. Both are PMG graded Superb Gem Uncirculated 67 EPQ. SBNC. Rare note in high grade.