have seen in an earlier chapter it is clear that a measure of wine would have a known value in relation to the various articles here enumerated. Thus in North America where the beaver skin was the unit, a gallon of brandy = 6 skins, a brass kettle = 1 skin, an ounce of vermilion = 1 skin and so on27. In other words, the ordinary currency with which the Lemnians would purchase wares from other people who had no wine of their own would be wine, the unit of which was the measure (which elsewhere I have tried to show was the cup δέπας, Smith’s Dict. Antiq. s.v. Mensura). This measure would be the size of the vessel ordinarily employed for wine, probably much the same as the two-handled vase out of which Silenus is seen drinking on coins of Thasos.
With the introduction of silver currency nothing is more likely than that an effort would be made to equate the new silver unit to that which had formed the principal unit of barter. That the earliest types should indicate the object (or its value) which the coin replaced is in complete accord with the statement of Aristotle (quoted on an earlier page) that “the stamp was put on the coin as an indication of value28.” As no numerals appear on the early Greek coins, it is evident that Aristotle regarded the symbol, whether ox-head, or tunny, or shield, as the index of the value. If it be said that the putting of a cow, or axe, or tunny on a coin was simply a picturesque way of indicating a single unit, we may reply that it is far easier to understand why a certain people chose a particular symbol, if in their minds the object symbolized was identified with the value of the silver or gold coin. It is at all events certain that Aristotle did not regard the type as religious in origin. But we are not without actual evidence that such an equating of the silver unit to the barter-unit really took place in Greece. It is held by the best numismatists that Solon was the first to coin money at Athens. It is also well known that the highest class in his constitution, called Pentacosiomedimni (Five-hundred-measure-men), were rated at 500 drachms. Thus the Olympic victor received 500 drachms to qualify him to be a Five-hundred-measure-man29. Furthermore Plutarch