Why is the 60-year-old binary lathe highly collectible? Is it rare or is it a wrong edition?

Why the collection value of 60-year-old binary lathes is high is mainly because they are rare in existence. As for the wrong version, it is completely misleading.

In the past, the two horizontal lines of the two-cent coin or two-cent two-yuan banknote were on the top. Both writing methods are acceptable, so there is no wrong currency. If it is said to be the wrong currency, after the bank issues it, if it discovers the wrong currency, it will immediately take it back and stop issuing it. I have also seen the "Oriental Shopping" column on TV many times recommending the third set of RMB collectibles, and also said that this two-yuan coin was the wrong version. I just find it very funny. Regular propaganda media also misleads people in this way. sad.