In the Republic of China, in that stormy era, no one should think of collecting paper money. The official currency issued in the Republic of China should also be based on the printed version. Theoretically, it seems that handwritten signature banknotes do not meet the issuance standards. Since it is not officially issued paper money, no one can guarantee its authenticity, and it feels like counterfeit money.

So personal understanding should be of little value. Of course, you can also continue to collect it yourself.