Large silver ingot made in Oruro, Bolivia, 28.75 kg, tested at 98% fine, no markings, encrusted with large piece of coral (as found), ex-Maravillas (1656). 15" x 4-1/2" x 3". Large ingots like this one from the Maravillas are very similar in size and shape to Atocha ingots, but for whatever reason they were found in much smaller numbers, this one in fact being only the third we have offered. Unfortunately this ingot bears no visible markings due to corrosive pitting on the top surface, now toned in an even gray color; but it is unique in having a large section (about 6") of oystery coral encrustation in one corner, very thick and stable, making for a fabulous display, also with small spots of coral elsewhere on the bar, including in the cylindrical "assayers bite" at one end indicative of the Oruro mine. From the Maravillas (1656), pedigreed to the J.P. Silberman Estate.
