Holograph notes on rate of output of copper Isaac Newton c. 248 words The Newton Project Oxford 2017 Newton Project, University of Oxford

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 c. 1713-1714, c. 248 words. MINT 19/2/332, National Archives, Kew, Richmond, Surrey, UK UKSurreyKew, RichmondNational Archives MINT 19/2/332 c. 1713-1714 England English Holograph MintCopper Coinage Catalogue information compiled by Rob Iliffe, Peter Spargo & John Young Catalogue exported to teiHeader by Michael Hawkins Transcribed by Will Scott
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Ten mills working 20 hours per day sufficed for coyning 90000li per week in shillings, or 15000li per day, or 150000 p shillings in 10 hours & one mill for 15000 in 10 hours. And 150000 half pence is 375lwt at 20d pence per pound wtweight. And this is done with 45 horses & a miller at 3s prper day each & 2s a labourer, that is for 20s, or 240 pence, that is for 1625d per lwtpound weight, or 2d per 3lwt. And if the copper go but thrice twice through the mill, it will be done for 49d per lwtpound weight.

One cutter dispatches 26 pieces in a minute that is 780 pence in an hour or that is 40lwt in an hour or 320lwt in 8 hours. And this is done wthwith a moneyer & a laburerlabourer to bend the scissel &c for 7s that is for 14d per lwtpound weight. One flatter dispat wthwith two men dispatches 112lwt in a minute, 90lwt in an hour & 720lwt in 8 hours for less than 4s, or 1lwt for 125d 115d. One Marking Engin dispatches 200lwt per diem for 43s & 14d prper diem Smiths works, the & works for 14 per lwtpound weight. One press works dispatches 40lwt in an hour & 320lwt in 8 hours for 13s, & so works for 12d per lwtpound weight. Nealing & blanching 12 per lwt. & Smiths work 34d per lwtpound weight Total 2d14 prper lwtpound weight.