Coins And Medallions
Both the obverses and reverses of the coins played their part. Of the former, I remarked:
Roman coinage, like Greek coinage, was intended to be looked at, and was looked at. . . . Coins were more portable than busts, and more widely distributed. So, for the dissemination of the ruler's features, the fullest possible use was made of the coinage. Coin-portraits had their share of the veneration accorded to imperial statues; for the coinage was itself under divine patronage, and was, in due course, even described as 'sacred'.