Guldengroschen

The Guldengroschen or Guldiner was a large silver coin originally minted in Tirol in 1486, but which was introduced into the Duchy of Saxony in 1500.

In the latter years of the 1470s and early years of the 1480s Sigismund of Austria issued decrees that reformed the poor state of his region's coinage by improving the silver fineness back to a level not seen in centuries (.937 pure) and created denominations larger than the ubiquitous, but fairly low valued Groschen of 4 to 6 Kreuzer that were in use.

This was a revolutionary leap in denomination from the smaller pieces, and surpassed even the large testones of Italy which were the highest weight coins in use.

For a long time thereafter such coins were also called "unciales" because their actual silver weight was very nearly one ounce.

One of the most recent is the Austrian 700 Years City of Hall in Tyrol commemorative coin, minted on January 29, 2003.