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What does the legacy of a magnificently wealthy ancient empire look like?
For collector Dan O'Dowd, once known in numismatic circles as "The Tyrant," the answer is a collection of more than 250 gold coins representing 1,700 years of Byzantine history.
O’Dowd brought that vision to life with his exquisite Tyrants of the Golden Horn Collection, which will be publicly exhibited at the American Numismatic Association World's Fair of Money in Pittsburgh, PA, August 25 – 29.
Authenticated, graded, and presented in partnership with PCGS, the multimillion-dollar exhibit promises to be one of the most extraordinary numismatic showcases in recent memory.
"This is a magnificent collection of gold coins featuring virtually every Byzantine emperor, up to the famous Constantine XI in 1453," said PCGS President Stephanie Sabin. "We were thrilled that the 'Tyrant' himself, Mr. Dan O'Dowd, entrusted PCGS to grade his monumental collection of Byzantine coinage.”
History Etched in Gold
The collection traces its name to the Golden Horn, a crescent-shaped waterway cutting through Constantinople, now the city of Istanbul, Türkiye. For over a millennium, the ancient world gravitated to its harbor, where trade ships teemed with silk, spices, and silver.
The emperors who controlled the region during the late-Roman and Byzantine eras shaped the course of Western civilization.
“Its wealth was so vast,” O’Dowd said, “that hundreds of years later, I can assemble a collection of spectacular coins of every emperor and sultan, most of which are pure gold and look like they were minted yesterday.”
O'Dowd's coins tell that story across the centuries. It’s a massive sweep of history that feels almost impossible to hold in a single room.
The earliest piece is a gold Aureus of Diocletian, struck in 290 CE. The most recent is a 1943 Turkish 500 Kurush. Together, they span the founding of Constantinople in 324 CE all the way to the abolishment of the Ottoman Sultanate in 1922.
The exhibit is designed to be as immersive as the history it represents. The coins will be displayed in a custom 30-by-30-foot space with 17 cases. Every coin will be accompanied by enlarged images and descriptive text.
O'Dowd put it plainly: "I decided I wanted to see each collection fully displayed."
Come August, the world can share in that glittering vision.
Click image to enlarge.
Tyrants by Any Other Name
O'Dowd began collecting U.S. coins in 2004 before pivoting to ancient and world coins under his signature "Tyrant" banner. The concept was simple, but colossal.
"The focus of the collection is tyrants of every age and culture," O'Dowd said. "Tyrants go by many titles: kings and queens, emperors and empresses, czars and czarinas, dictators, regents, popes, caliphs, sultans, and khans. But what defines them is their absolute power over a territory containing millions of people."
The coins in the Golden Horn exhibit feature virtually every Byzantine emperor from Constantine the Great to the tragic Constantine XI, who fell defending the walls of Constantinople against the Ottoman siege in 1453.
Each coin, many struck in pure gold, offers an intimate portrait of whoever held power at that precise moment in history.
A Partnership for the Ages
Bringing this collection to the public required a grading partner equal to the task. PCGS rose to the occasion and sees the collaboration as part of a broader expansion into the ancient world.
Sabin pointed out that PCGS launched grading services for ancient Chinese cash coins from the Qing Dynasty last year and sets its sights on “new grading frontiers in the near future.”
PCGS plans to announce more updates about Ancient Grading at the upcoming PCGS Cocktail Reception at the ANA World's Fair of Money on August 26.