The change introduced by the Argives and Aeginetans after driving the Athenians from Aegina was to make the “measure” of their brooches half as big again as what it had previously been. Now this is approximately the relationship in weight of the earliest Aeginetan drachmae to the earliest drachmae struck on the Euboeic standard. Later, in Herodotus’ own times, the relative weights were four to three. But the earliest Aeginetan drachmae weighed a little more than those of later issues[881]. On the other hand, as stated by Percy Gardner[882] in discussing Solon’s “augmentation” of the Athenian coins, the earliest Attic or rather Euboeic drachma[883] weighed less than those of post-Solonian times. The weight of the Aeginetan drachma as determined from the early didrachms quoted above (p. 171, n. 6) is just over six grammes, as compared with the 5·85 grammes of later issues, while that of the earliest Attic Euboeic drachma as determined from the coins of p. 171, n. 8 is just over four grammes, as compared with the 4·26 grammes of later issues[884]. Thus the original Aeginetan drachma seems to have been just half as heavy again as the earliest Attic[885]. This ratio is accepted by Ridgeway[886], who regards it as invented to make ten silver pieces worth one gold when gold was fifteen times as precious as silver, while later, when silver rose to be worth 3/40 of its weight in gold, the silver pieces were slightly diminished in weight, in order that ten of them might still be the equivalent of one of gold[887]. [Sidenote: Summary of the evidence of Herodotus.] Let us now return to the one passage of Herodotus, in which he refers by name to the Argive tyrant.