PCGS

This 1974 Italy 100 Lire commemorates the 100th anniversary of radio inventor Guglielmo Marconi’s birth in 1874. Click image to enlarge. Of all the modern means of media and entertainment, arguably few have been as impactful as radio. The audio transmissions that carry sound to virtually everybody within the range of radio waves reshaped the world around the turn of the 20th century.

2002 Greece 1 Euro. Click image to enlarge. Birds have adorned coins forever. With their nuanced symbolism and timeless aesthetic appeal, feathered friends have long been favorites for francs and florins, farthings and fifty-cent pieces. Famously, the ancient Greeks paid homage to Athena on the silver tetradrachm. The helmeted head of the goddess of wisdom appears on the obverse, paired with a reverse image of a wide-eyed, all-seeing owl.

This coin features NFC anti-counterfeiting technology. Tap a NFC enabled device to the front of the label to further verify authenticity.

Imagine the means and wherewithal to build and complete virtually any set of coinage ever produced... Indeed, Dan O'Dowd, a well-known tech mogul, did almost that. He built many phenomenal collections under the auspices of his "Tyrant" alias with little fanfare and in nearly complete confidentiality until a 2017 British news source revealed his identity. Most of the larger auction firms, especially in the U.S., respected his privacy while he spent more than 17 years building his sets quietly.

China Longevity Silver Tael above a 1987 Canada Voyageur Dollar, the latter struck the year PCGS began grading world coins. Click image to enlarge. When PCGS began its operations in 1986, its focus was primarily authenticating, grading, and encapsulating United States coins of rare stock as well as "blue-chip" coins, like high-end Walking Liberty Half Dollars and Morgan Dollars.

1795 9 Leaves Draped Bust Eagle BD-3T-3 / Courtesy of The Tyrant Collection Click image to enlarge. The mission of The Tyrant Collection is to obtain a coin with the name and likeness of every tyrant who ever ruled. This includes a coin from every major territory or country of each major civilization. A feat that has been meticulously accomplished for the tyrants of the Thames, Tigris and Eurphrates, Tyrrhenian and Adriatic Seas, Tiber, Seine, and Nile civilizations.

Obverse of Alderney 2010 5 Pounds John Lennon Unique Gold Striking, Reverse of Alderney 2010 5 Pounds John Lennon Unique Gold Striking, PCGS PR69DCAM Click image to enlarge. The Tyrant Collection is one of the most impressive collections of coins ever assembled. The breadth and scope of this cabinet is terrific from all numismatic aspects, including condition, value, and historical importance.

Marc Vazsonyi / Courtesy of Marc Vazsonyi Click image to enlarge. Marc Vazsonyi may be all about ancient coins, but he didn't start off collecting coins struck during the millennia of yore. When he started his numismatic journey at the age of seven, he was focused on building a collection of Lincoln Wheat Cents. "I was fascinated by their unusual design and the concept of rarity across different years and mints.

Helena Augusta, Solidus struck at the Nicomedia Mint between 324-325 CE Click image to enlarge. Flavia Julia Helena, better known as Helena Augusta, was best known as the mother of Constantine the Great. She is also a canonized saint in both the Catholic and Orthodox churches for her role in spreading Christianity. Helena and Constantine's father met when she was young and lived together for about 19 years. However, he left her to marry an emperor's daughter and raise his social status.

PCGS graded Dan O’Dowd’s Tyrants of the Golden Horn Collection. Click image to enlarge. A previously unexhibited portion of the historical rare coins in the unparalleled Tyrant Collection (www.TheTyrantCollection.com) will be publicly displayed together for the first time at the American Numismatic Association (ANA) 2026 Pittsburgh World's Fair of Money, August 25-29, 2026. "The multi-million-dollar exhibit of over 250 significant coins is entitled Tyrants of the Golden Horn.