Small silver contraband "splash" ingot from the Concepcion (1641), 108 grams. Roughly 3" in diameter. Thin, odd-shaped puddle of silver (simply "splashed" onto the ground), with prominent flow lines on top and air-bubble pits on bottom but no markings and no appreciable corrosion, nicely toned. From the Concepcion (1641).
Estimate: $400 - 600