You are on the website where you can learn more about
fakes than anywhere else. Go to the
Fake Coin Reports (click the blue text link) and then click through and read the study images to start. That is not going to teach you how to authenticate
ancient coins but it will teach you to spot most
fakes.
There may be examples of your
fakes in the
Fake Coin Reports or there may not be any place where you can "see that they are fake." You can't expect to ID all
fakes with matches.
There are fake items all over the internet, but there are also places you can
shop that are safe. You need to rely on reputable, expert sellers with a guarantee of authenticity to avoid
fakes. Click the
shop button in the header.