Watch List notes:

Silver "tumbaga" bar #M-80, 4595 grams, fineness 1370/2400, marked with serial number RC, assayer B~Vo and fineness iVcccLxx, from the "Tumbaga wreck" (ca. 1528). 12-1/2" x 4" x 3/4". Attractive bar, wide and flat, with fairly smooth top surface showing bold fineness and serial number and assayer plus two small circular tax stamps, all with contrasting toning, large square-shaped assayer's "bite" in one corner, no corrosion. From the "Tumbaga wreck" (ca. 1528).

Estimate: $5000