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    Kellogg & Humbert Gold Ingot, 46.53 Ounces
    Ex:
    S.S. Central America

    Kellogg & Humbert MS Gold Ingot. 46.53 Ounces. CABG-700. The process of extracting gold from the earth could be a tedious and sometimes dangerous process, because of the chemicals needed to separate the gold from other elements. This quote from Hubert Bancroft's Handbook of Mining gives the modern reader what was involved.

    "If auriferous quartz, free from sulphurets, is to be assayed, four hundred grains of the rock finely ground pulverized may be mixed with an equal weight litharge [lead oxide, fatal if inhaled] and five grains of charcoal. Put this mixture in a crucible large enough to contain twice as much more, then put the crucible in the furnace and melt the mass. Remove from the fire, allow the crucible to get cold, break it and the metal will be found in a 'button' at the bottom, covered with a slag of melted rock and other matter.

    "If the rock to be assayed contains pyrites, it must be roasted till it ceases to give out sulphurous fumes. Mix four hundred grains of the powder with two hundred grains of litharge, two hundred grains of dry carbonate of soda, two hundred grains of dried borax, and ten grains of charcoal; then put into a furnace and treat the button as directed in the last two paragraphs."



    Or, the miner could take his ore to one of several local assayers and avoid the risk of death from lead oxide. Of the local assayers, none had a more firmly established and widely recognized reputation than Kellogg & Humbert. This firm had an undisputed dominance in the market, as seen by the 343 ingots recovered in the late 1980s from the S.S. Central America, and another 30 found in 2014. This is a medium to large sized ingot. It is vertically aligned with the imprints reading: No 945 / K&H hallmark / 46.53 Oz / 923 FINE / $887.79. Bright yellow-gold surfaces throughout. The ingot measures: 44 x 100 x 19 mm.
    From John's S.S. Central America Collection.

    Coin Index Numbers: (PCGS# 661900)


    View all of [John's S.S. Central America Collection ]

    Auction Info

    Auction Dates
    November, 2020
    19th-22nd Thursday-Sunday
    Bids + Registered Phone Bidders: 12
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