《中国钱币》1996年第四期刊出魏侃先生信与秀愚先生的答复，关于大中银行1921年是否发行辅币券的问题。这里涉及一个如何判定纸币印制发行的时间。纸币上印的年份，不是发行时间，而是制版的时间，这是人所共知的。例如现行流通的第四套人民币上印的是1980年，而实际发行日期 The fourth issue of “1996 China Coin” published a reply from Mr. Wei Kan and Mr. Xiu Yu on the issue of whether Dazhong Bank issued a coin voucher in 1921. Here’s how to determine when a banknote is printed and distributed. It is well known that the year printed on banknotes is not the issue date, but the time of plate making. For example, the current fourth installment of Renminbi is printed on 1980, and the actual issue date