# Calculations of the weight and value of the new louis d'or and louis d'argent which are to be made current in Ireland.

To the most honourable the Earl of Oxford & Earl Mortimer Lord High Treasurer of Great Britain.

May it please your Lordship

According to your Lordships Order of Reference signified to us by Lowndes his Letter dated 29^{th} of April last we have considered the annexed Letter of the Lords of the Privy Council in Ireland concerning the making current the new French moneys of Gold & Silver in that kingdom, together with the annexed Report of M^{r} Vincent Kidder Assaymaster there concerning the intrinsic values of those moneys. And by the weight of 55000 Louidiors of the new species amounting to 1197^{Lwt} 1^{oz} 11^{dwt} we find that singly they are in weight one with another 5^{dwt} 4^{gr} 9$\frac{1}{2}$^{mi} And by the Assays of several Ingots melted out of new Louidors compared with the Assays of many single pieces We find that they are at a medium one grain & one 12^{th} part of a grain worse then standard. And therefore by the weight & assay together they are singly worth but twenty shillings & six pence in England. And in Ireland where a Guinea passes for 1^{li} 3^{s} they are worth 1^{li} 1^{s} 11^{d}$\frac{1}{2}$, & in our humble opinion should not pass there for more then 1^{li} 2^{s}. At which rate the half Lewidor may pas for 11^{s} & the Quarter for 5^{s} 6^{d}.

Fifteen hundred silver Louisses of the new species weighed 1470 ounces, & therefore one with another they weigh singly an ounce wanting 9^{gr} 12^{mites}. They are an halfpenny weight worse then standard one with another, & therefore their standard weight at a medium is an ounce wanting 10$\frac{1}{3}$ grains. And so they are wroth 5^{s} & three farthings a piece in England at present. And in Ireland where a Crown piece English passes for 5^{s} 5^{d} these Lewises singly are worth 5^{s} 5^{d}$\frac{3}{4}$$\frac{1}{16}$, & in the nearest rownd number may pass for 5^{s} 6^{d} & the half Lewises for 2^{s} 9^{d} & the Quarter pieces for 16$\frac{1}{2}$^{d}.

All which is most humbly submitted to your Lordships great wisdome