Watch List notes:

Small silver contraband "finger" bar ingot, 608 grams, mixed fineness (up to 98%), no markings, ex-Maravillas (1656). 5-1/4" x 1-1/4" x 3/4". Typical shape with rounded bottom and sides but flat top, most of the surfaces silvery but punctuated with significant areas of copper color, no markings of course and truly contraband in having a wide range of fineness across its volume (as tested by XRF), having clearly avoided official testing and taxation. From the Maravillas (1656).

Estimate: $1250 - $2000