I'm not questioning your knowledge, but just out of curiosity, how do you know they are replicas? Is there a tell tale mark? And thank you for the help ☺
Just the fact that they don't look anything like actual coins of the period. You can see an authentic example of a similar coin here: https://www.acsearch.info/search.html?id=2824716
The color is off, the designs are off, and you can get this kind of replica on ebay for like a dollar.
