Found a very worn Mexican 2 Reale, can see what looks like 21 at bottom but must be 27 as were only issued 1824-1897, 1891 indian, 1889 V nickel, Good for $1 saving token, tent rope adjuster, ear ring, great seal military pin marked sterling on back
Unfortunately, the mint mark from one of the 11 or so mints that issued this coin is also toast.
Fortunately, we know the silver content is consistent from any mint: 0.903 pure silver.
Congrats on your findings !
Don......