Jacobus: Difference between revisions
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[[Isaac Newton]] refers to the coin in a letter to [[John Locke]]: |
[[Isaac Newton]] refers to the coin in a letter to [[John Locke]]: |
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<blockquote>'' 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.''</blockquote><ref>[http://www.gold.org/value/reserve_asset/history/monetary_history/vol1/1698sep19.html Letter of Isaac Newton |
<blockquote>'' 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.''</blockquote><ref>[http://www.gold.org/value/reserve_asset/history/monetary_history/vol1/1698sep19.html Letter of Isaac Newton] dated |
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September 19, 1698, to John Locke, concerning the weight and fineness of various coins |
September 19, 1698, to [[John Locke]], concerning the weight and fineness of various coins.</ref> |
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==References== |
==References== |
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[[Category:Coins of England]] |
[[Category:Coins of England]] |
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[[Category:Gold coins]] |
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Revision as of 23:33, 16 April 2011
A Jacobus is an English gold coin of the reign of James I, worth 25 shillings.[1]
Isaac Newton refers to the coin in a letter to John Locke:
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.
References
- ^ A Discourse of Coin and Coinage
- ^ Letter of Isaac Newton dated September 19, 1698, to John Locke, concerning the weight and fineness of various coins.