Coins have been found in many places; but as it is not always certain that they were not Gallic, the proofs of a very early coinage in Britain is inconclusive. Indeed, the notion that the tin trade--to which may be added that in fur and salt--was carried on by barter is the more probable. But the coins of Cynobelin are numerous. They have been well illustrated;[4] are of gold and silver; and whether stamped in Gaul or Britain, indicate civilization of commerce and industry. The measure of the progress of Britain from the Stone period upwards, partly referrible to indigenous development, partly to Gallic, and partly to Phœnician, intercourse, is to be found in these coins. It is the civilization of a brave people endowed with the arts of agriculture and metallurgy, capable of considerable political organization, and with more than one point of contact with the continent--their war-chariots, their language, and their Druidism being their chief distinctive characters. Iron was in use at this time--though, perhaps, it was rare. The conquests under Claudius carry us over new localities; and they are related by a great historian, with more than ordinary means of information. In Tacitus we read the accounts of Agricola. Yet the information, with the exception of a few interesting details, is confirmatory of what we have been told before, rather than suggestive of any essential differences between the Britons of the interior and the Britons of the southern coast. The war-chariot was limited to certain districts. The rule of a woman was tolerated. The wives and mothers looked-on upon the battles of the husbands and daughters. They may be said, indeed, to have shared in them. Their cries, and shrieks, and reproaches, their dishevelled hair, all helped to stimulate the warriors, who opposed Suetonius Paulinus in the fastnesses of the Isle of Anglesey. The Druids added fuel to the fiery energy thus excited. There was the political organization that consolidates kingdoms. There was the spirit of faction which disintegrates them. As were the Brigantes, so were the Iceni; as were the Iceni, so were the Silures and Ordovices. The same family likeness runs throughout; likeness in essentials, difference in detail. In Caledonia the hair was flaxen; in South Wales curled and black. The complexion too was florid, from which Tacitus has drawn certain inferences.