1787 Brasher Doubloon with Unique EB on Breast Gold Rush Gallery, Inc.
1787 Brasher Doubloon with Unique EB on Breast Unique, "EB on Breast"
1787 Brasher Doubloon from
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This is an engineering drawing (side view) of the toggle-joint steam coining press designed by Franklin Peale and first used at the Philadelphia Mint in 1836. Presses of this type (believed to be the "small size") were used at the Dahlonega and Charlotte Mints. Power to turn the press was supplied by a belt from the steam engine. Source: Ferguson, Eugene S., ed. Early Engineering Reminiscences (1815-40) of George Escol Sellers . Washington, D. C.: Smithsonian Institution, 1965, page 69. Earlier from Journal of the Franklin Institute (November 1836).

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