Also coins can tell about the Tiber island: in particular on the Reverse of many coins one can found the representation of Aesculapius, his temple and his symbol, the snake, as well as the Tiber river, considered as a god.
The last eight coins (from 17 to 24 of page 2) have been coined in Greek and Asian mints.
A short Glossary of the numismatic terms used in this section is enclosed at the bottom of this page.
OBVERSE and REVERSE: Respectively the front or "heads" side of a coin, usually the side with the date and main design, and the back or "tails" side of a coin.
AE: from Latin As or Assis; indicates a bronze coin; used in describing ancient coins made from copper, bronze or orichalcum, a Roman type of brass
AR: from Latin Argentum (silver); indicates a silver coin e.g. AR denarius, AR antoninianus
AV or AU: From Latin Aurum (gold); indicates a gold coin e.g. AV solidus
Antoninianus: Double denarius coin. Roman emperor Caracalla 211-217 AD introduced as a pure silver coin but soon debased to 3% silver. Depiction of emperor's portrait with a radiate crown is it's uniqueness.
As or Assis (pl. ases or asses): The earliest coins issued in what is now central Italy were cast bronze pieces known as Aes Grave weighing about 320 grams, first issued around 289 BC. Prior to this time, there were bronze coins known as Aes Rude, but these were essentially irregular lumps of bronze.
Aureus: A gold coin
Denarius: The basic unit of exchange in ancient Rome, from about 210 BC until about 250 AD. The denarius was a silver coin, of which the weight and fineness varied somewhat depending on which emperor was presiding over the affairs of the Imperial treasury. For the majority of the Imperial Period, a denarius had the same value as 16 bronze ases.
Quinarius: Silver coin; half denarius i.e. 8 ases.
Sestertius (pl: sestertii): The largest regular-issue coin of the Imperial period. Usually made of orichalcum, but sometimes made of bronze, in value to 4 copper asses.
Tetradrachm: Greek silver coin equivalent yo 4 drachms.