appears with the head of Artemis on obverse and a lion on the reverse, weighing 58-55 grains.
Now over all Gaul, and far into Northern Italy, and the valleys of the Alps, as far as the Tyrol, the coinage of Massilia made its way and was abundantly imitated. In fact these imitations formed the entire medium of those regions until the Roman conquest. The imitations of the little coins with Apollo and the wheel as reverse are found right into the north of France, and in England.
Did the Kelts borrow their 13-1/2 grain unit from the 13 grain obol of Massilia, or is it of far earlier growth? The Etruscans used a unit of 13-1/2 grs. in the 4th century B.C., and we find the Massaliotes having almost the same. Is the true answer this? All over Western Europe the ox unit of 135 grs. of gold was subdivided into 10 parts each of 13-1/2 grs. These 10 parts corresponded to 10 sheep, the regular value of a cow. There was also a higher unit from Greece to Gaul and Britain corresponding to the slave. There were fluctuations in their worth in various times and places, but on the whole there was a tendency to raise the weight of the higher unit (ounce). But it is natural that the Kelts may have taken over into their system certain units from the Phocaic system which they used as multiples of their own smaller units, just as the Teutonic peoples took the Roman pound into their own system, and the natives of West Africa made the Spanish dollar the multiple of their own native weights, based on seeds. Some idea of the relative ages of Keltic gold ornaments may perhaps be got from applying the criterion of weight standard to them.
