1980年第四版人民币壹佰圆。评级套左侧可见书写痕迹。PCGS GSG 标注 "墨写"。CHINA--PEOPLES REPUBLIC. The Peoples Bank of China. 100 Yuan, 1980. P-889a. PCGS GSG Choice Uncirculated 64 Details. Writing in Ink.Penned sharpie is seen at left on the holder. PCGS GSG comments "Writing in Ink."