Niobium collector coins

The niobium coins from Austria are among the most sought-after collector coins because of their uniqueness. They have been minted annually since 2003 and are made of silver and niobium. Unlike bullion coins made of gold or silver, these bi-metal coins are very popular, especially among coin enthusiasts. Some series are already sold out and are only available on the collectors' market, as the demand for niobium coins has been rising continuously since 2003.