At the heart of the collection lies the 100 Ducat gold coin of Ferdinand III of Habsburg (1629). Weighing 348.5 grams of fine gold, it’s one of the largest European gold coins ever struck ...

In fact, many of the coin types heading to auction have never before been offered at a public auction. The prize piece of the collection is a 100 ducats coin minted in 1629, during the reign of ...