Because the intelligence on treasure hunting has confirmed that this item is real.
Therefore, Chen Yiyang didn't ask the historian to check the authenticity of the item again, but decided to investigate by himself to find out what is special about this silver coin.
Thanks to various ancient film and television works, modern people basically know that ancient coins have a square hole in the middle.
If you have a lot of money, you can also thread the coins together with a string, which is called a string of cash.
However, in modern times, even silver coins, which are also currencies, do not have a hole in the middle anymore.
The main reason behind this is the change in minting technology.
In ancient times, copper coins were the main transactional currencies, and having a hole in the middle made it convenient to tie them up with a string for trading.
