Summary of gold-silver ratios and the value of the guinea in nine countries Isaac Newton c. 357 words The Newton Project Oxford 2017 Newton Project, University of Oxford

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 1700-1701, c. 357 words.

Mint 19/2/68 is on the back of a cover addressed to Newton in another hand in Latin, which has also been used for holograph notes on the diameter of the earth measured in French feet and a list of names of French scientists.

 MINT 19/2/5, National Archives, Kew, Richmond, Surrey, UK UKSurreyKew, RichmondNational Archives MINT 19/2/5 1700-1701 England English Latin Holograph MintAnalyses of Foreign Coin and Exchange Rates Catalogue information compiled by Rob Iliffe, Peter Spargo & John Young Catalogue exported to teiHeader by Michael Hawkins Transcribed by Will Scott
5215

One pound weight of fine gold is recconed in France equall in value to 15 pound weight of fine silver, & at this rate a Guiena is worth 1li 0s. 0d12.

According to the proportion of Gold to silver in Holland a Guinea is worth about 1li. 0s. 0d12. or 1li0 20s. 7d In the countries of the ElectorsDukedomes f Brandenburgh, Saxony, Brunswick & Lunenburg, Hannover, Zeel, Wolfenbuttel &c the Guinea is 1li. 0s. 4d. or 20s. 5d At Hamburgh it is worth 20s. 0d14 or 20s. 1d. At Dantzig it is worth 19. 1112 or. 20s. At Rome Venice Florence Leghorn Bulloin Ancona Millain Naples Genoa the Spanish piece of eightPistole & French Lewidor is worth about 15s 10d12 & the Guinea is worth about 20s. 06d 7d or within a penny more or lessor 8d In Spain & Portugal the Guinea was worth about 31l. 2s. 35d. The high value of Gold in these countriesSpain makes their silver goe into all Europe as fast as it comes from the west Indies, while their Gold stays at gome in competent quantity. In Spain pme lwtpound weight fine ☉ is equal in value to 16 lwtpound weight of ine ☽. For a double dobleoon or four Pistole piece weighs is of equal weight with a silver Doller or piece of eight & passes for 16 such pieces of eight; at wchwhich rate a Guinea is worth 22s. 1d. The high price of Gold in Spain makes their Silver goe into Europe as fast as it comes from the West Indies. In France one pound weight of fine gold is recconed equal in value to 15 pound weight of fine silver & at this rate a Guinea is worth li 20s. 8d12 According to the proportion of Gold to silver in Italy & Holland a Guinea is worth about 20s. 7d. In the Dukedomes of Brandenburg, Saxony, Brunswich, Lunenburg, Hannover, Zell, Wolfenbuttel, &c the Guinea is worth about 20s 5d At Hamburgh it is worth about 20s 1d. At Dantzigck it is worth about 20s. In Portugal it is of about the same value as in Spain.