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Numismatic Puzzle: The Rolling Mill

In today’s puzzle you will deal with the rolling mill. The reward is a reconstruction of this machine, which revolutionised the minting of coins in the 16th century.

Numismatic Puzzle: Treasure Island Gotland

In this puzzle, you will find a treasure. Once you’ve solved it, you can marvel at a shiny part of the treasure hoards of Visby on the island of Gotland!

Numismatic Puzzle: San Francisco’s Old Mint

This time you will deal with San Francisco’s Old Mint, which was built as a symbol of San Francisco's wealth after the California Gold Rush.

Numismatic Puzzle: Swissmint

Today you can try your hand at the federal mint of Switzerland. The reward is the façade of Swissmint in Bern!

Numismatic Puzzle: Electrum Stater

Today’s puzzle is an electrum stater from Milet. After solving the puzzle, you can marvel at a roaring lion!

Numismatic Puzzle: Joachimsthal – The Taler’s Birthplace

In 2020 we celebrated the 500th birthday of the taler. In this puzzle, you will put together the pieces of the Joachimsthal mint, which the new currency was named after.

Numismatic Puzzle: William II

Today we have a rupie from Africa with a German face for you. Solving the puzzle reveals the portrait of William II!

Numismatic Puzzle: Frederick II – Stupor Mundi

Today you can try your hand at an augustalis of the Holy Roman Empire. The reward is a portrait of Frederick II, King of Sicily!

Numismatic Puzzle: Vitruvian Man

This time, try your hand at Leonardo da Vinci’s Vitruvian Man. The reward is the legendary image in ultra high relief on an issue by Coin Invest!

Numismatic Puzzle: Alexander the Great

Today you can try your hand at a tetradrachm of Lysimachus. The reward is a portrait of Alexander the Great!
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