My point in two previous postings is trying to show the problematic areas of those four coins which IMO, they are not genuine, and are reproduction from a die copied from a genuine circulated coin.
Here are additional two areas which I was not mentioned previously in this small section of the coin. Usually, I will not give away so many information, since counterfeiters also visit this forum to gain the knowledge and therefore to improve their skill in making fake coin.
The shape and size of those dots in the marked area are identical for these four coins. They were connected at the same spot. This can not be happened, when the coins were wore in different degree.
刻刀痕 (knife notch/knife mark) can be copied from circulated coin by skillful counterfeiters and can not be considered as the only evidence of a genuine coin.