Need ID stats on this coin

[Dozer D]

Need expert ID on this Mexico coin. I assume it's a one ounce silver (or what), but it doesn't say 1-peso. Would it be considered as silver bullion just like our ASE's. It's very heavy (forgot to gram weigh it).
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Comments on ID and value. Tks, DozerD

 

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[Mackaydon]

https://en.numista.com/catalogue/pieces14465.html
Don.........

 

[BigWaveDave]

I found one of those in a junk foreign bin years ago, paid 20 cents for it.
Sold it to a guy about 8 yrs ago for 30 bucks.
I bought it back from him last year for 15.