Archive: People and Markets

The IADAA-logo.

Happy Birthday! The IADAA Turns 30

The International Association of Dealers in Ancient Art (IADAA) celebrates its 30th anniversary. James Ede, one of the founding fathers, remembers his personal experiences in the association and the antiquities trade.

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John Highfill († 15 June 2025)

Tulsa, Oklahoma rare coin dealer John Highfill, founder of the National Silver Dollar Roundtable and author of a landmark 1,200-page reference book, The Comprehensive U.S. Silver Dollar Encyclopedia, passed away on June 15, 2025. He was 82.

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The special coins honor projects, associations and prominent figures, and draw attention to issues that are important for Switzerland.

Swiss Linguistic Diversity Gold Coin

The latest Swiss gold coin “Swiss Language Diversity” honors cultural diversity and multilingualism as the very essence of Switzerland.

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The new medal commemorates the 75th Anniversary of Israel’s Independence on May 14th, 2023.

The Jewish-American Hall of Fame Presents a Medal in Honor of David Ben-Gurion

To commemorate Israel’s 75th Anniversary of Independence, the Jewish-American Hall of Fame has issued a medal commemorating featuring a portrait of “The Father of Modern Israel” – David Ben-Gurion.

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Archive: Coins, Medals and more

Queen Anne: Great Britain on Its Way to Becoming a Global Power

On 26 May 2025, SINCONA will auction off part 6 of the British Collection presenting the medals of this ensemble. In this article, we will show you some of the treasures among the lots and explore the story of Queen Anne. Under her rule, Great Britain became the most important trading power in Europe.
The courtyard of the Alcazár of Seville was immortalised on a 2024 2-euro coin from Spain. Photo: Real Casa de la Moneda (coin), javarman3 / Getty Images Pro via Canva Pro

The Secret of the Success of State Quarters, UNESCO Coins and Federal State Series

25 years ago, the United States of America started a new chapter in numismatic history. Their State Quarters became the model for many other successful coin programs – including Spain’s UNESCO World Heritage Site series.
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