Jacobus: Difference between revisions
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A '''Jacobus''' is an English [[gold coin]] of the reign of [[James I of England|James I]], worth 25 [[shillings]]. |
A '''Jacobus''' is an English [[gold coin]] of the reign of [[James I of England|James I]], worth 25 [[shillings]].<ref>[http://www.public-domain-content.com/books/discourse_coin_coinage/9.shtml ''A Discourse of Coin and Coinage'']</ref> |
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[[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> |
<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].</ref> |
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==References== |
==References== |
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* [http://www.public-domain-content.com/books/discourse_coin_coinage/9.shtml ''A Discourse of Coin and Coinage''], with some information on the coin. |
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* [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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Revision as of 13:50, 3 April 2009
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
- ^ [http://www.gold.org/value/reserve_asset/history/monetary_history/vol1/1698sep19.html Letter of Isaac Newton, dated September 19, 1698, to John Locke, concerning the weight and fineness of various coins].
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