(Ancient coins)
As rare as precious stones, ancient coins, sourced from numismatic dealers and auction houses, are referred to as “gemme nummarie” (nummary gems) and straddle centuries of history.
These miniature pieces of art have been carefully selected for their mythological and historical aspects, which are slowly uncovered while analysing the engraver's work. Each mark provides a hint of the city in which the coin was minted, the victory it was celebrating, or the emperor in power during that period. Owning a coin is like owning a piece of history, with its details intact, allowing us to study and dream.
Ancient coins were made from gold, silver, electrum, and copper and its alloys, such as bronze or brass. Gold coins did not become common until the time of Philip II, the father of Alexander the Great.
Coins of gold and silver are said to have intrinsic value, as their worth closely approximated the value of the bullion making up the coin. The fineness or purity of the metal used for gold and silver coinages was closely monitored.
Throughout Greek and Roman times, gold coins were consistently of very high purity, usually more than 95 percent pure gold. Silver coins were of equally high purity until the time of the Roman Emperor Nero, who lowered the silver content to about 90 percent.
Coins of copper and its alloys were not common until the later fourth century B.C. The Greeks mainly used bronze, an alloy of copper and tin, or simply copper. The Romans used a yellowish alloy of copper and zinc, a type of brass called orichalcum. Numismatists label all copper-alloy coins as bronze.
Every ancient coin has two sides: one called the obverse, the other the reverse; and the figure, and legend, or inscription, on each face, deserve thoughtful consideration. Note that today’s way of describing coins varies slightly.
OBVERSE: The “front” of the coin. On most Roman coins, this is the side with the portrait of a ruler. Technically, it is the side of the coin that lays flat on the anvil when being struck. The ‘legend’, writing on the obverse, typically names the issuer, emperor, titles, or other designations.
REVERSE: The “back” of the coin. Also described as the “Type.” On most Roman coins, this side features figures of people, scenes worthy of note, deities, various symbols, and interesting designs. Sometimes, a provincial city will have a constant design or type on the reverse, in effect a civic symbol or badge. Technically, the reverse is the side struck with the hammer and punch. This is the side of the coin paid most attention to when classifying coins.
EDGE: The “third side” of the coin. Most edges are of plain design, but some are serrated. On modern coins, the edge often has many small ridges or is “reeded,” hoping to prevent the act of clipping a little of the precious metal from the edges. Since the reeds would be missing from a clipped coin anyone would know the coin to be below proper weight. This practice continues today even though precious metals are no longer used in coins for circulation.