Watch List notes:

Small, coin-like "plata corriente" piece cut from a "splash" ingot, 14 grams, with partial tax stamp visible. 14.01 grams, 7/8" x 5/8" x 1/4". Thick, crudely broken interior segment with just the indent of a circular tax stamp still in evidence on one side, some sediment here and there, XRF tested at 91.45% silver, 1.43% copper, 2.90% lead, basically the equivalent of a 4 reales in its time when actual coins were hard to come by.
($200-300)