Watch List notes:

Large silver ingot #636 from Potosi, 93 lb 7.20 oz troy, Class Factor 0.9, with markings of manifest IULXVII (1067), fineness IIUCCCLXXX (2380/2400), owner/shipper, silvermaster and tax stamps, ex-Atocha (1622), ex-Caesars Palace auction (1987). 14-1/4" x 5-1/4" x 3-1/2". This bar stands out for two large owner/shipper marks at one end (one an MB monogram and the other a complex cipher an H, diamond and 3), the manifest and fineness in middle rather bold above and below the usual double-scoop assayer's "bite" in center, also with most of tax stamp and mint-date cartouche Po162(?) to right of an erased previous owner/shipper mark with an even larger one, also erased, at that end next to a faint V for silvermaster de Vreder, additionally desirable with provenance to the original Las Vegas 1987 auction and Gene Lyon manifest research. From the Atocha (1622), with original Fisher photo-certificate #85A-S636, pedigreed to the Caesars Palace auction of September 26, 1987 (lot #54), with original catalog (also with January 1988 Skin Diver magazine reporting on the results), and with original manifest report from Gene Lyon. Recovered from: Atocha, sunk in 1622 west of Key West, Florida

Estimate: $25000-50000