1 Scherf "Hohlscherf" ND

The "Hohlscherf" coin from the City of Erfurt is a rare and unique coin that was minted during the 15th century. The coin's design features a hole in the center, which was a common feature of coins during that time period. However, what makes this coin particularly interesting is that the hole was not simply a design element, but it was also used as a way to test the coin's authenticity. The mint masters would insert a small metal rod through the hole to ensure that the coin was made of pure silver and not a counterfeit. This feature, known as a "probation mark," was a pioneering technique in coin authentication and was used in various German cities during that time.

• medieval
• early modern
• hre