Can anyone help me on this? Mexico Silver Zapata Plan de Ayala?

I recently aquired 2 of these. Aside from the Wikipedia story about Zapata's plan & involvement with the Mexican revolution, I cannot find any info about this particular commem coin. Who produced it? mintage or rarity? T
hey're both housed in a cosmetic style plastic case with red velvet.
The obverse reads "Tierra Libertad" Emiliano Zapata -
The reverse reas "Plan De Ayala" Reforma, Libertad - Justicia y Ley Nov. 28 1911
It's sterling I believe - 28 grams & about 38mm
1
Comments
I found this -
P378A: 1911(Struck 1961, 62 and 63) Emiliano Zapata. Obv. Zapata on Horse, with a farmer standing to one side. Tierra Y Libertad. Rev. The sun and the Mexican flag. Plan De Ayala- Reforma, Libertad-Justicia Y Ley- Nov. 25 De 1911. Mexico City mint mark on Obv. to the left.
In the NGC Census under Mexico - Grove Medals SILVER there is also a P-380a and P-382a with Zapata's name. But the above P-378a description looks like a pretty good match.
I don't own this, but it is likely in Medals of Mexico: 1821- 1971, Vol II, Frank W. Grove.
Jeff
The above info is correct.
Mexico City Mint. Very common (though not so in original box). Mintage unknown.
These are beautiful examples!
Thank you both!
Click on this link to see my ebay listings.
Those are cool!
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There are 2 in gold in the upcoming Stacks Bowers NYINC sale:
NGC MS67
and
NGC MS65
pruebas those are really cool. And Meltdown, yours are great too, especially with the boxes. Looks like the felt toned that one up really nice! Reminds me of the 1971-1973 Canadian dollars, but these Mexican medals are higher silver content than the .500 Ag Canadian dollars.
I remember about five years ago going on a wild goose chase of sorts to identify the Grove 800a. That one is a 1962-Mo Battle of Cinco de Mayo Centennial silver medal. At the time the LCS had one of these in their foreign junk silver bin which had toned so dark (black) as to be almost unrecognizable.
Take care,
Jeff