Hello and please give me some advice

Good day.
When I was looking at these coins, I noticed that the ones with the "V" mark are partly overcuts of other coins. Does anyone know anything about this? 

This one can be seen in the AVS inscription

and in this one it can be seen through the eagle.

Thank you.

Not sure about the first one, but the second coin looks like it was struck with clashed dies.

I tried this too and it seems to me that there are the letters "ITA..."

I think a clash would look something like this because this coin has medal alignment.

Mr. Exonumist

I think a clash would look something like this because this coin has medal alignment.

 

Yes, that would correspond exactly to the first coin, where the "A" has a beveled part.

But that still doesn't explain the "S" in the first picture.

Guessing here.

Here in Brazil we have colonial coins struck over 2 reals coins, Bolivian usually. The original design can usually be seen.

Maybe they struck it over another coins?

I just don't see it listed in the catalog, as is the case with other coins. I guess it's not important.

jeto2

I just don't see it listed in the catalog, as is the case with other coins. I guess it's not important.

Numista doesn't list mint errors.

Check coneca.

https://conecaonline.org/glossary-of-error-variety-terms/

I don't think this is a mint error.