Date appears to be 188x. Mo mint.
The eagle die has remnants of an X cancellation on its face. The cap die doesn’t. It could be they don’t even belong together.
If they are genuine, they must have been dug up.
Flip the image around - not Mo mint but Alamos - which you very rarely see contemporary counterfeit coins of.
Eagle looks proper for 1880s As mint...
I looked again at the die and it does appear to be As.
1880s assayer for Alamos would be ML. For Mexico would be MH.
From the photo it appears MH, but in person it appears ML. So I’ll agree it’s Alamos.
I’d like to locate some clay to do a “trial strike.”
Edited to add: I’m still looking for the catalog description from where I purchased it. To be continued….
I don’t really have anything to add, just that @pruebas has got to be one of the most interesting collectors I’ve ever observed. In a good way.
I'm BACK!!! Used to be Billet7 on the old forum.
They look cruder in details than I would expect but I'm only somewhat familiar with the series. I know that there are counterfeits, usually base metal, and lacking the detail of genuine coins.
Yes, the corrosion would indicate possible burial and make determination of authenticity more challenging.