On differences between the customary par and the current rate of exchange between English and French money at Dunkirk, and what proportion of the loss should be born by the Crown
In the course of Exchange, nine pounds sterling are recconed at a par with 100 Gilders specie money of Holland, or 1li with 11 Gildrs 2 Styvers. But 1li sterling lately passed in Holland only for 10 Gilders & 9 or 10 styvers, or at a medium for 10 Gildrs 9 Styvers. The defect is 12 Styvers, whereof her Majty allowed to the forces in Flanders 5 Styvers, wch is a{illeg}lmost one half o{illeg}f the defect or loss by the exchange.
The par between English & French money isof notthe new species is not yet setled by the course of the Exchange: but by weight & assay I find that an unworn French crown piece of the new species wch passes at Dunkirk & in France for five Livres is worth 5s 1d sterling. And at this rate 20s sterling are worth 19 livres 13 sous. But 20s sterling pass at Dunkirk for only 17 livres. The defect or loss is 2 l{illeg}ivres 13 sous to be divided between her Maty & the forces. And as 12 styvers to 5 styvers, so are 2 livres 13 sous to 23 sous, her Majts proportional part of the defect: wch added to 17 livres the current value of 20s sterling at Dunkirk, makes her Majts allowance {illeg}18 livres 3 sou{illeg}s for 20s sterling, recconing a French crown new species at 5 livres. But her Majty may alter the proportion at pleasure & make the allowance in a rounder number.
When nine pounds sterling are recconed at a par wth 100 Gilders as above the specie money of Holland is overvalued by about 3 per cent:. For the thre– Gilder piece unworn is worth only 612 pence sterling by the weight & assay. And thence nine Gilders pounds sterling are worth intrinsecally worth ab{illeg}out 103 Gilders. And one pound {illeg}sterling which lately passed at about 10 G 9 st is worth 11 {illeg} Gilders 9 styvers. And then the loss by the exchange is about a Gilder, whereof her Maty bare only 5 styvers, wch is about a quarter of the whole loss. And according to this proportion her Maty should beare but about a qu{illeg}arter of the loss by the exchange at Dunkirk., wch is about 14 or 15 sous. But the rules of the Exchange where they are setled beingare being generally followed, I {illeg}pr{illeg}esume it might be her Mats intention to beare about one half of the loss by the exeange {sic} in Holland, as in the recconing first set down in this paper.
Source
MINT 19/2/172, National Archives, Kew, Richmond, Surrey, UKEarly October 1712, c. 423 words.