Watch List notes:

Silver "plata corriente" cut piece of a small, round ingot with partial circular tax stamp of Charles I of Spain, 20.21 grams. Roughly 1" x 3/4" x 1/4". Triangular edge-piece with two broken sides, the tax stamp weak with just the S visible on top, other side encrusted with tan sediment.

Estimate: $200 - 300