Draft of MINT00706 (Mint 19/3/487) with variant figures but to the same general effect
To the Right Honourable the Lord High Treasurer of great Britain.
May it please your Lordship
In obedience to your Lordships Order of Reference of the 9th instant upon the annexed representation of the Gentleman owners of Tin lands in Cornwall to the Lord Warden of the Stannaries relating to a new contract for Tinn: we humbly represent that by the course of the sale of Tin this & the four last years there has been sold in Cornwall & London at a medium about 1560 tunns per annum stannary weight, which being deducted from 1600 Tunns received annually from Cornwall, & allowing 40 tunns more for Devonshire, there hath remained about 80 Tunns yearly unsold, so that 1520 tunns of Cornish Tinn has been sold yearly, more or less; and if the same course of the sale continues, there will remain at the end of the present contract so much tinn unsold as at the rate of 3li 16s per cwt averdepois will produce about 180000li. And so long as the same course of sale continues, if six per cent (the interest of the moneys now advanced to the owners of Tinn-lands) be allowed upon the said dead stock of 180000 & the coinage duty & post groats be paid, & 1400li been accounted sufficient to answer accidents & unforeseen charges, her Majesty may without losing by the contract give 3. 9. 6 per cwt stannary weight for 1520 tunns of tinn the quantity annually consumed, as will appear by the following account.
1520 tunns of tinn at 3li. 9s. 6d per stannary weight | 105640 | ||
Freight to London | 2035. | 14. | 3 |
Salaries in London | 1350 | ||
Incidents & Porters in London | 200 | ||
Passing accounts | 90 | ||
Salaries in Cornwall & 30 to Truro | 1540 | ||
Incidents in Cornwal | 700 | ||
Interest of 18000 at 6 per cent | 10800 | ||
Total | 122359. | 14. | 3 |
Insurance & other accidents & unforeseen charges | 1411. | 14. | 0 |
Produced annually by sale of tin at 3li 16s per cwt stannary weight | 123771. | 8. | 7 |
If it be supposed that the consumption may carry annually 1600 or 1800 tunns stannary: it will appear by the like recconing upon that supposition, that her Majesty may give 3li 10s in the first case & 3li. 11s in the second, & so in proportion to a greater or less consumption But every 100 tunns purchased above what the consumption will carry off makes a dead stock annually increasing, the interest of which at 6 per cent will in the end of seven years amount to about ten thousand pounds.
Source
MINT 19/3/490, National Archives, Kew, Richmond, Surrey, UKNov. 1709, c. 437 words.