1893? Mexican 20 Centavos

I found a coin not listed in the registry. There is an 1892 version in the catalog without a photo.

Lettering on the front says "REPUBLICA MEXICANA"

The back says "8 R.M. 1893.A.M.10D.20C."

Any help is appreciated.

Coin is 8 reales

https://en.numista.com/catalogue/pieces7394.html

its a silver dollar. what made you think 20 cents?
can you weigh it? and measure diameter?

Verweis : "Mr. Midnight"​its a silver dollar. what made you think 20 cents?
​can you weigh it? and measure diameter?

​I guess he saw 20c on the inscription!

ok i see - but that is actually a G
the fineness of Mexican silver was described thus -
12 Dineros = .999 Silver, 24 Granos = 1 Dineros, so 10Ds 20Gs = 0.902777 Silver
quoting the numista page

This should be put in the translation box. Always good to know what all these abbreviations mean.
Edit: ignore me