Jacobus

Jacobus

A Jacobus is an English gold coin of the reign of James I, worth 25 shillings.

The correspondence of Isaac Newton refers to the coin:

" The Jacobus piece coin'd for 20 shillings is the 41th: part of a pound Troy, and a Carolus 20s piece is of the same weight. But a broad Jacobus (as I find by weighing some of them) is the 38th part of a pound Troy."

More broadly, "Jacobus" is derived from the bible name Jacob which means the wise one

References

*
* [http://www.public-domain-content.com/books/discourse_coin_coinage/9.shtml "A Discourse of Coin and Coinage"] , with some information on the coin.
* [http://www.gold.org/value/reserve_asset/history/monetary_history/vol1/1698sep19.html Correspondence] of Isaac Newton, Warden of the Mint, dated from Jermin Street, Westminster, to John Locke, concerning the weight and fineness of various coins. (September 19, 1698).


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  • Jacobus — Ja*co bus, n.; pl. {Jacobuses}. [See {Jacobite}.] An English gold coin, of the value of twenty five shillings sterling, struck in the reign of James I. [1913 Webster] …   The Collaborative International Dictionary of English

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