Jacobus
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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
[edit] References
- This article incorporates text from the public domain 1907 edition of The Nuttall Encyclopædia.
- A Discourse of Coin and Coinage, with some information on the coin.
- 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).