1980年第四版人民币1元,编号SJ68697128, 漏墨错体, PCGSBG 10,并不常见. 中国人民银行. Peoples Bank of China, 4th series renminbi, 1 yuan 1990, ERROR NOTE, serial number SJ68697128, the obverse missing the upper layer of ink,(Pick 884b), PCGSBG 10 Very Good. Very striking and unusual