Help identifying 2 large Chinese coins (?) [solved]

Came across 2 large coins that look like the Chinese cash designs . Not sure if these are real coins or some kids of tokens.
1. 36mm diameter, 13g weight
2. 31mm diameter, 8.5g weight



Any help greatly appreciated, thank you !

The left one is https://en.numista.com/catalogue/pieces168123.html
The right one is https://en.numista.com/catalogue/pieces140276.html

I do not know if they are authentic or not - the authentic ones usually value from several dozens of USD to more than 100 USD.

Authenticity is always a question with Chinese coins these days. For the second one the weight and size seem to be off by quite lot, not sure if the catalog numbers are off or varied a lot, or if the coin I have is a fake.

Thank you for your help !

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After reading on the 2 cash it seems that they were minted with significant variations in diameter.