Watch List notes:

Small "tumbaga" silver bar ("half-brick" shape) #M-40, 2454 grams, stamped with assayer/fineness IVIIIL with small x's above and below (1350/2400 fine) plus defaced old assay marks consisting of assayer B~Vo, serial number RC and fineness iUCCCXC (1390/2400 fine), plus two partial tax stamps, from the "Tumbaga wreck" (ca. 1528). 7-3/4" x 2-3/4" x 3/4". Neatly rectangular with one side bubbly but the other side smooth and graced with old markings of B~Vo hammered out and replaced with new-style markings and lower fineness, consistent with two diagonal assayer's "bites" in the same corner, lightly toned and well preserved. From the "Tumbaga wreck" (ca. 1528). (Estimate: $4000 - 6000)