Holograph notes on the price of tin from Siam
<533r>
Siam Tin sell in Holl{illeg}and {illeg}for 50 Gilders Bank money (i. e. 4li. 5s. 6d) pr C
Ours for 45 or 56 Current money (i. e. 4li 1s ))r 2s 10d)
Siam Tin at Mallacca costs from 35 to 40 Dollars of 4s a Dollar the Bahara of 400lwt Averdup. nat (i. e. from 39s to 44s the C
In China it pays 1 Tale of 6s 8d custome & sells for 10 Tale a Pecol of 132lwt Averdup.
It is often carried from Mallacca to Persia at 60 pr cent profit
Its {sic} is vendible at the Bay at ye fort & at Surat
Source
MINT 19/3/533, National Archives, Kew, Richmond, Surrey, UK1705, c. 105 words.