Watch List notes:

Silver "tumbaga" bar #M-136, 2801 grams, stamped with fineness LV9cccc (1900/2400), serial RLXXX and assayer B~Vo, from the "Tumbaga wreck" (ca. 1528). 13-3/8" x 3-1/2" x 7/16". Thin and neatly formed ingot with relatively smooth top punctuated by pits from gas bubbles or burnt-off charcoal, clear markings in one cluster on bottom, crude rectangular assayer's "bite" in one corner, minimal surface corrosion. As time has gone by since their discovery in 1992, these "tumbaga" ingots have become ever more appreciated for their rarity and importance as hard evidence of the confiscation of silver from Mexican natives by Spanish conquistadors. From the "Tumbaga wreck" (ca. 1528). "Tumbaga wreck," sunk ca. 1528 off Grand Bahama Island

Estimate: $3500-5000