Two rare Roman gold coins issued several hundred years apart starred in Numismatica Ars Classica's May 20 auction, each realizing nearly $700,000 U.S.

The medal of particle physicist Leon Lederman went for $760,002 during a Nate D. Sanders auction on May 28.

The European Union announced the chosen design for its union-wide circulating commemorative €2 coin due for release later in 2015.

Residents of the Eurozone have selected a Bank of Greece designer's submission for a circulating commemorative €2 coin to be issued later in 2015.

A new £5 coin from the Royal Mint will head a series of five coins to commemorate the signifance of World War I in the european region.

The first Australian coin to top the $1 million mark (in Australian dollars) was on display over the weekend in Brisbane.

The second part of the famed Slaney Collection of English rarities was auctioned May 14 by Spink, with spectacular results.

The Royal Canadian Mint has issued a parade of coins commemorating Bugs Bunny and the Looney Tunes cartoon characters.

RAM releases Australian 50-cent coins marking the battles of Greece, Crete and El Alamein.

The first three digits are located well to the left of the normal date and rotated counterclockwise.

The Central Bank of Malta has issued a tiny commemorative Proof half-gram gold €5 coin honoring the tenth anniversary of Pope John Paul II's death.

Thomas Hockenhull of the British Museum has written a book exploring the influence of different currencies on history.

The Central Bank of Malta is marking two milestones in 2015 with circulating commemorative €2 coins, including the first flight from Malta, during WWI.

The Royal Dutch Mint has issued a series of commemorative coins to mark the bicentennial of the Battle of Waterloo.

A casual glance at an unfamiliar medal can lead to startling discoveries.

If it weren't for certain bronze sestertii coins of Nero, historians would not know about a triumphal arch the famous ruler erected to honor himself.

One of four privately held pattern shillings of Edward VI, struck circa 1547, realized £9,600 ($14,529 in U.S. funds), including the 20 percent buyer’s fee.

One of four known 1920-S gold sovereigns, called the greatest gold rarity of the British Empire, realized $753,211 U.S. in a May 19 London auction.

The Pobjoy Mint has issued coins for two countries to celebrate the birth of Princess Charlotte Elizabeth Diana on May 2.

Several mints, including the Royal Mint, have issued modern medallic tributes to Pistrucci's masterpiece in the last 50 years.

Last week, World Gold Council published its quarterly report “Gold Demand Trends": overall demand declined 1%, but overall “investment demand” grew by 4%.

New 2015 coins from the Isle of Man honors legends of the famed TT motorcycle race held on the island since 1907.

The Mint of Finland's Animals of the Provinces €5 series ends with a coin for Tavastia.

The Rudolph P. Laubenheimer Family Archives featuring numismatic items from the noted diesinker, engraver and medalist will be offered for sale June 25.

Muted coins, where designs tell the story, are increasingly popular in modern world coin issues. These silent coins speak to the art lovers in us.

Benedetto Pistrucci's medal for the Battle of Waterloo was an artistic masterpiece some three decades in the making.

Israel's latest commemorative coin series celebrates the world's largest renewable energy source, solar power.

Eight rulers issued coins during the brief Romano-Gallic Empire period. Sometimes coins are the only tangible evidence of the rulers' short reign.

Charlemagne consolidated Europe and instituted a coinage reform with lasting effect. One of his silver deniers highlights a June auction in Germany.

The Austrian Mint's series of coins featuring designs inspired by young residents focuses on historic Vienna.

The Scottsdale Mint's newest issue in a Biblical series shows the story of David and Goliath. The 2015 silver $2 coin has a mintage of 1,499 pieces.

Engraver Benedetto Pistrucci’s 30 years of toiling to create a medal marking the Battle of Waterloo never resulted in one struck from the original dies.

The centennial of the sinking of the RMS Lusitania is featured on a new Proof silver $2 coin from Niue.

Eight coins are being released throughout 2015 featuring the classic Looney Tunes cartoon characters.

The Danish Government has proposed an option that will no longer obligate business owners to accept cash from customers in common, day-to-day transactions.

A school in the United Kingdom was home to a hoard of about 300 Roman coins.

A rare gold 9-solidi medallion of Constantine the Great leads Bonhams' June 1 auction.

Italy joins a long line of countries issuing coins commemorating World War I. Italy's newest coin is a Proof silver €10 with designs inspired by sculpture.

Orders are being taken by Jeff Shevlin, the "So-Called Dollar Guy," for brass, copper and .999 silver versions of the "2nd Annual So-Called Gathering" medal.

A four-coin set from Alderney struck by the Royal Mint celebrates famous quotes from Sir Winston Churchill.

The famous World War I poem "In Flanders Field" is the motif of new coins from the Royal Canadian Mint honoring the war centennial.

An array of coins were issued to honor the newborn princess

A silver taler from what is modern-day Slovakia shows the legend of St. George slaying the dragon. The coin sold in Emporium Hamburg's April 23 and 24 auction.

Japan, host country of the 2020 Olympics, will release a series of coins to commemorate the games, according to Japan Times.

The finest known example of what has been called the greatest gold rarity of the British Empire highlights a May 19 auction in London.

The 2015 Maundy ceremony was a royal affair, taking Queen Elizabeth II to Sheffield Castle for the annual event where Maundy money is distributed.

Fans of Star Trek: The Original Series have their collector coins, now it’s time for "The Next Generation" to get in on the action.

The Royal Australian Mint has issued non-circulating 50-cent coins marking the birth of Princess Charlotte Elizabeth Diana in copper-nickel and silver.

The young designer of the United Kingdom's future £1 coin to be launched in 2017 talks to Coin World about the design process and his winning entry.

A major shipwreck has discovered near Jussarö, an island off the southern edge of Finland.

Germany has announced plans to restore silver into Uncirculated collector coins sold at face value, though the face value of those coins will now be €20.

An edited version of an interview The Silver Institute conducted with the Royal Canadian Mint's Steve Higgins for Silver News is presented.

The Perth Mint is onboard the Royal Baby bandwagon, announcing its gold and silver commemorative coins honoring the birth of Princess Charlotte of Cambridge.

Though the fifth of May might be best known in the U.S. for the parties it inspires, the date is important to Mexico as the anniversary of the Battle of Puebla.

The Royal Mint announced new collector coins marking the birth of Princess Charlotte Elizabeth Diana within hours of the baby's birth on May 2.

The Royal Canadian Mint has secured its first coinage contract with the Bank of Indonesia, which will use blanks created by the RCM for the 1,000-rupiah coin.

Coin discovered in Europe, graded MS-62 by PCGS, is highest certified, according to Stack's Bowers Galleries and Sotheby’s, who are offering it May 20.

William and Kate's second child arrived over the weekend, and she is being honored with a commemorative coin from the Royal Mint.

A collection of miniature Greek coins featuring animals highlights Numismatica Ars Classica's May 20 auction.

Sovereign for new sovereign: Royal Mint announces limited edition gold coin

In 1930 Germany celebrated the 1929 around-the-world flight of the Graf Zeppelin airship with a commemorative silver coin.

This Roman Gold Nero is the most valuable of the bunch

Germany has unveiled designs for the next three circulating commemorative €2 coins in its annual Bundeslander series.