There are many ways to write "er" in traditional Chinese characters and various calligraphy, and this way of writing is one of them. It has existed since ancient times. So the early RMB was often written like this. It was not until the 1980s that the country introduced a standardized simplified Chinese character scheme, which unified the writing of "er". Therefore, since the fourth set of RMB created by 1980, the writing of "two" has been unified to the present appearance. Prior to this, all kinds of plate-making, printing and issuing currencies were not wrong editions, and the state did not specifically recycle them.
At present, the price of this brand-new leaflet is generally 15-20 yuan.