The Wealth of Nations by Part 4 Chapter 8 Page 41

fit any commodity for immediate use and consumption, our manufacturers think that they themselves ought to have the doing of it.

Woolen yarn and worsted are prohibited to be exported under the same penalties as wool. Even white cloths are subject to a duty upon exportation, and our dyers have so far obtained a monopoly against our clothiers. Our clothiers would probably have been able to defend themselves against it, but it happens that the greater part of our principal clothiers are themselves likewise dyers. Watch-cases, clockcases, and dial-plates for clocks and watches have been prohibited to be exported. Our clock-makers and watch-makers are, it seems, unwilling that the price of this sort of workmanship should be raised upon them by the competition of foreigners.