Browse texts by category: Analyses of Foreign Coin and Exchange Rates

1.

Notes on the English-Dutch exchange rate.

Author: Isaac Newton

Source: MINT 19/2/166, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00194

2.

Holograph notes on the denominations, fineness and weight of various foreign coins, with a letter to Catherine Barton dated 5 August 1700 on the reverse.

Author: Isaac Newton

Source: MINT 19/2/30, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00195

3.

Brief letter concerning the 'perusal' and possible purchase, apparently on Newton's behalf, of some Italian coins from an unspecified 'gentleman'.

Author: Isaac Davies

Source: MINT 19/2/10-11, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00196

4.

Report on the assay and valuation of 41 Russian kopecks.

Author: J. Spilman

Source: MINT 19/2/14, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00197

5.

Report on Dunkirk coinage.

Author: Isaac Newton

Source: MINT 19/2/16, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00198

6.

Holograph list of subjects for investigation: the current rate of exchange in Dunkirk, the names and values of new French coins, and in which Mint Dunkirk currency is coined.

Author: Isaac Newton

Source: MINT 19/2/161, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00199

7.

Holograph memorandum on the coins current in Dunkirk and how to establish the rate of exchange.

Author: Isaac Newton

Source: MINT 19/2/170, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00200

8.

Table of the current and intrinsic values of French coins.

Author: Isaac Newton

Source: MINT 19/2/136, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00201

9.

Table of the current and intrinsic values of Dutch coins.

Author: Isaac Newton

Source: MINT 19/2/156, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00202

10.

Table of the current and intrinsic values of French and Dutch coins.

Author: Isaac Newton

Source: MINT 19/2/163, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00203

11.

Holograph table comparing Dutch and French coinage, with notes on the value of English money in Dunkirk.

Author: Isaac Newton

Source: MINT 19/2/159-60, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00204

12.

Memorandum on Spanish, Portuguese, Dutch and Imperial denominations and on the new French louis d'or of May 1709.

Author: Isaac Newton

Source: MINT 19/2/6, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00205

13.

On the value of the Imperial dollar and uncertainty as to whether the term refers to the common dollar or the Rix dollar (Reichsthaler), which is worth more.

Author: Isaac Newton

Source: MINT 19/2/180-81, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00206

14.

Extract from [Rice] Vaughan's Coin and Coinage [1615] on French currency changes 1417-23.

Author: Isaac Newton

Source: MINT 19/2/146, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00208

15.

Holograph memorandum on French currency changes [of May 1709].

Author: Isaac Newton

Source: MINT 19/2/149, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00209

16.

'Experiments and Observations about the value of forreign coyns' [in fact entirely about French ones]: notes on denominations, French Mint practice, and rate of wear of coin.

Author: Isaac Newton

Source: MINT 19/2/134, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00210

17.

Holograph notes, partly in French and partly in English, with the Latin heading 'Pondera mensuræ et nummi in Gallia' ['Weights, measures and coins in France'].

Author: Isaac Newton

Source: MINT 19/2/33, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00211

18.

Holograph notes on French coinage.

Author: Isaac Newton

Source: MINT 19/2/151, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00212

19.

Holograph fragment on the effect of increasing the value of French coins.

Author: Isaac Newton

Source: MINT 19/2/135, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00213

20.

Clerical notes of the weight and assay of various French coins, followed by a holograph list of the values of foreign coins current in Ireland.

Author: Isaac Newton

Source: MINT 19/2/224, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00214

21.

Covering letter for a report on Dutch coinage.

Author: I. F.

Source: MINT 19/2/12, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00215

22.

Holograph notes on Dutch coinage.

Author: Isaac Newton

Source: MINT 19/2/155, 165, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00216

23.

Holograph notes on guilders.

Author: Isaac Newton

Source: MINT 19/2/168, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00217

24.

Rough holograph notes on Dutch coinage.

Author: Isaac Newton

Source: MINT 19/2/164, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00219

25.

'Of Spanish Money'.

Author: Isaac Newton

Source: MINT 19/2/197, National Archives, Kew, Richmond, Surrey, UK

Newton Catalogue ID: MINT00220

[1]

The manuscript is badly damaged and all the printed versions contain a number of conjectural readings.

[2]

The letter to Barton is very well represented in print, appearing in David Brewster, Memoirs of the Life, Writings, and Discoveries of Sir Isaac Newton (2 vols., Edinburgh, 1855), 2: 213, in Louis Trenchard More, Isaac Newton (New York and London, 1934), 470-1, in Craig, NATM, 27, in NC, 4: 349-50, and in Westfall, 595. It does not seem to have occurred to any of the authors or editors of these works that the fact that Newton used the same sheet for notes on coinage rather suggests he never sent the letter (though it is of course possible he sent another copy).

[3]

On reverse of a holograph letter dated 5 August 1700 from Newton to Catherine Barton [his half-niece], wishing her well with her recovery from smallpox.

[4] Isaac Newton

[5]

Printed in NC, 7: 377.

[6]

On reverse (written over the address): holograph notes on Italian coins.

[7] Isaac Newton

[8]

Headed 'An Acct of ye Several Species of Money sent from Dunkirk To Mr Ashb Frowd Controwler of ye forain offices London wt ye number of Livers [sic] and Sols Each Contains and ye Price of ye whol in English mony'.

On reverse: note by Frowd dated November 1712.

[9]

[Probably connected with the increased English presence in Dunkirk following the Peace of Utrecht (April 1713).]

[10]

[This and the preceding entries may well be in response to the Treasury order, dated 3 February 1712/3 (NC, 5: 375), for a report on French and Dutch coinage, but no finished report is known.]

[11]

Signed and dated by Newton.

[12] Treasury

[13]

Draft of PRO, T1/227, no. 31 (printed in Shaw, 196-7, with the erroneous reference T1/217, and in NC, 7: 88-9). See NC, 7: 87-8 for the Treasury's request for this information.

[14]

'Rix' or 'Reichs' is said to mean 'Imperial' [it does], 'But I am not skilled in the German language'. Uncertainty about the current rate of exchange between English and Swedish currency.

[15]

Followed by notes on coins from all over Europe.

[16] Isaac Newton

[17]

An account of Spanish coinage.

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Professor Rob Iliffe
Director, AHRC Newton Papers Project

Scott Mandelbrote,
Fellow & Perne librarian, Peterhouse, Cambridge

Faculty of History, George Street, Oxford, OX1 2RL - newtonproject@history.ox.ac.uk

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