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Silver "tumbaga" bar C-280, 2887 grams, marked with finenesses IV @ L X X X (1580/2400, 65.8% fine)

Currency:USD Category:Coins & Paper Money / Shipwreck Ingots Start Price:5,000.00 USD Estimated At:6,000.00 - 9,000.00 USD
Silver  tumbaga  bar C-280, 2887 grams, marked with finenesses IV @ L X X X (1580/2400, 65.8% fine)
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Silver "tumbaga" bar C-280, 2887 grams, marked with finenesses IV @ L X X X (1580/2400, 65.8% fine) and IV9C L x x x (1680/2400), 70% fine), assayer B~Vo, and serial R L X X X, ex-"Tumbaga Wreck" (ca. 1528), ex-Christie's (1993), García-Barneche Plate. 2889 grams. 10" x 3" x 5/8". A very well-marked bar of manageable size, still a bit dark and with spots of orange encrustation on bottom as uncleaned (sold at Christie's before Armstrong conserved the rest), the markings on top indicative of two different assays with divergent results, the lower one with "&" symbols above and below and the higher one with R-series and assayer B~Vo marks above, also with the diagonal assayer's "bite" in the corner showing two separate cuts, partial circular tax stamps at either end. Pedigreed to the original Christie's (London) auction of April 1993 (lot 280), with Sedwick photo-certificate, and plated on page 118 of Agustín García-Barneche's The "Tumbaga" Saga, 2nd ed. (2018), a copy of which accompanies this lot.