Small silver "splash" ingot, encrusted as found, 285 grams, no markings, ex-Concepcion (1641). Roughly 3" x 3-1/4" and 1/4" thick. A flat and irregular disk(-ish) that is completely covered in gray-white encrustation on one side, the other side with about two thirds similarly encrusted and one third exposed, no visible markings and likely to be smuggler's contraband. From the Concepcion (1641), with photo-certificate.
Estimate: 1000 - 1500 USD