Also, this may have been the brass sestertii at 25 grams. > In or about 23 BC, with the coinage reform of Augustus, the sestertius was reintroduced as a large

Also, this may have been the brass sestertii at 25 grams. > In or about 23 BC, with the coinage reform of Augustus, the sestertius was reintroduced as a large brass denomination, That's 375kg of brass which would fetch about $1700 in today's dollars at scrap prices.