In England e. g. copper is legal tender only to the amount of six pence and silver up to forty shillings. If silver and copper tokens were to be issued in greater quantities than the requirements of their spheres of circulation call for, prices of commodities would not rise as a result, but the accumulation of these tokens in the hands of retail dealers would reach such an extent that they would be finally compelled to sell them as metal. Thus in 1798 English copper coins, issued by private individuals, accumulated in the hands of small traders to the amount of £20,350 which they tried in vain to put again in circulation, being finally compelled to throw them as metal on the copper market.79
The silver and copper tokens which represent gold coin in certain spheres of circulation in the interior of the country, contain a definite quantity of silver and copper prescribed by law, but after they get into circulation, they wear off like gold coins and become even more rapidly mere phantoms, according to the rapidity and steadiness of their circulation. To draw again a line of demonetization beyond which silver and copper tokens would lose their character of coins, they would have to be replaced in turn within certain spheres of their own circulation by some other symbolic money, say iron and lead, and such representation of one kind of symbolic money by another kind would form an endless process. In all countries with a well developed circulation the very requirements of money circulation make it necessary that the character of silver and copper tokens as money be made independent of any loss of weight in those coins. Thus, as it was in the nature of things, it appears that they serve as symbols of gold coin not because they are symbols made of silver or copper, not because they have certain value, but only in so far as they have no value.
Relatively worthless things, such as paper, can consequently perform the function of symbols of gold money. That subsidiary currency consists of metal tokens, such as silver, copper, etc., is mainly due to the fact that in most countries the less valuable metals such as silver in England, copper in ancient Rome, Sweden, Scotland, etc.,