(Jan 8, 2012)
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Diameter 35mm Bronze Sestertius 34mm (24.00 grams) Struck circa 117-138 A.D. This problem also led to the narrowing of the width of the wall, from the original 12 feet to 7, saving masonry A silver denarius was supposed to weigh about 4.5 grams, valued at ten grams, with the silver sestertius valued at two and one-half grams In or about 23 BC, with the coinage reform of Augustus , the denomination of sestertius was introduced as the large brass denomination The sestertius was produced as the largest brass denomination until the late 3rd century AD The brass sestertius typically weighs in the region of 25 to 28 grammes, is around 32–34 mm in diameter and about 4 mm thick A loaf of bread cost roughly half a sestertius, and a sextarius (~0.5 liter) of wine anywhere from less than half to more than 1 sestertius One modius (6.67 kg) of wheat in 79 AD Pompeii cost 7 sestertii, of rye 3 sestertii, a bucket 2 sestertii, a tunic 15 sestertii, a donkey 500 sestertii The reverse depicts the emperor on horseback with a companion Sestertii are highly valued by numismatists , since their large size gave caelatores (engravers) a large area in which to produce detailed portraits and reverse types The brutally realistic portraits of this emperor, and the elegant reverse designs, greatly impressed and influenced the artists of the Renaissance
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