Archive: People and Markets

A New Member to Join the SINCONA Team: Michael Otto

The SINCONA team is excited to welcome a new member. As of 1 January 2025, Michael Otto is working at the SINCONA Group’s headquarters in Zurich. He is looking forward to taking over the position as Head of Numismatics.

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The representative of Guinness World Records hands over the certificate for the world’s smallest coin to Robert Blaic, CEO of the Croatian Mint. Photo: Croatian Mint.

The World’s Smallest Coin

Now it is official: Croatia’s 1-kuna coin dedicated to the town of Hum holds the Guinness World Record as the world’s smallest coin!

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The 12th Hong Kong Coin Show (HKCS)

The 12th Hong Kong Coin Show (HKCS) will take place from Friday, 4th April to Sunday, 6th April. You can expect exhibitors from over 50 countries, auctions, educational seminars, exhibitions, on-site coin grading services and much more – in short: a festival of numismatics!

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On Our Own Account: CoinsWeekly Takes a Moment to Reflect

CoinsWeekly will be taking a break from July 4 to September 15, 2025, to perfect and implement its new concept. Look forward to opinionated commentary and in-depth numismatic information, when CoinsWeekly is back again after September 15!

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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.
Bei genauer Betrachtung können Münzen besondere Merkmale aufweisen, die sich entweder gut oder schlecht auf ihren Wert auswirken. Diese zu erkennen und mit den richtigen Begriffen benennen zu können ist wichtig für jeden Münzsammler. Achtung, Bronzepest kann ihre Sammlung zerstören! Foto: Shutterstock.

Cleaning, Patina, Verdigris etc.: Which Errors Affect the Price of a Coin? – Part 2

The price of a coin does not only depend on its rarity and quality. In the second part of our overview we will talk about wear and tear, cleaning and the consequences of environmental processes.
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