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首席收藏网 > 数据中心 > Stack's Bowers and Ponterio > SBP2016年8月ANA-美国钱币#4

Lot:2563 Undated (Circa 1964) DuPont Pattern Quarter. Judd-Unlisted, Pollock-5391. Rarity-2. Nickel Alloy bon

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外国钱币

USD 400

SBP2016年8月ANA-美国钱币#4

2016-08-12 01:00:00

2016-08-12 13:00:00

USD 376

SBP

成交

<strong>Obv: </strong>Profile of Benjamin Franklin facing left with 1706 BENJAMIN FRANKLIN 1790 around. The reverse has the name DU PONT within an oval cartouche with the inscription THIS TOKEN IS MADE FROM EXPLOSION BONDED "DETACLAD." Light champagne drapes the reflective silvery surfaces across each side of this attractive specimen. These pieces were struck by the firm of August C. Frank in Philadelphia for Du Pont as a way of showcasing the latters experimental planchet material Detaclad. Using explosive force, Du Pont was able to bond a 25% nickel/75% copper alloy to a copper core, inspired by the way shrapnel is welded to armor plating after an explosion.,NGC ID: AMZF.,,

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