The Wealth of Nations by Part 2 Chapter 2 Page 38

Scotland before the union, in 1707, and which, immediately after it, was brought into the Bank of Scotland in order to be recoined, amounted to L411,117 10s.

9d. sterling. No account has been got of the gold coin; but it appears from the ancient accounts of the mint of Scotland, that the value of the gold annually coined somewhat exceeded that of the silver. There were a good many people, too, upon this occasion, who, from a diffidence of repayment, did not bring their silver into the Bank of Scotland: and there was, besides, some English coin which was not called in. The whole value of the gold and silver, therefore, which circulated in Scotland before the union, cannot be estimated at less than a million sterling. It seems to have constituted almost the whole circulation of that country; for though the circulation of