Augustus completely reorganized the coinage. The aureus was now worth 25 silver denarii or 100 sesterces or 400 bronze aces. The ace seems to be struck under Augustus at 1/30th of a pound (1 pound weight = 325 g. approximately). The organization of the production is under the responsibility of the Senate under the direction of the monetary Triumvirs "Triumvir Auro, Argento, Aere Flando Feriundo" responsible for the preparation of blanks and the minting of coins.