1768 AD., German States, Holy Roman Empire, Kingdom of Bohemia, Habsburg rule, Maria Theresia, Prague mint, 1 Gröschl, KM 791.

German States, Holy Roman Empire, Kingdom of Bohemia, Habsburg rule, Maria Theresia (1740-1780) / Franz I, Prague mint, 1768 AD.,
1 Gröschl (ø 23,2 mm / 7,22 g), copper, axis medal alignment ↑↑ (0°), plain edge with surrounding wreath pattern,
Obv.: crowned arms of Bohemia, Moravia and Silesia.
Rev.: EIN / GRESCHL / 1768 , value and date in three curved lines with wreath.
KM 791 ; Her. 1676 .

Year / Mintage
1760
1761
1763
1764
1765
1767
1768

In 1759 Maria Theresa introduced a copper coin called Greschl (a diminutive of German Gröschel = small Groschen) weighing 1.67 grams and with a diameter of 17.5 mm. It was an impractical coin given its size and it was therefore minted in a larger dimension of 23.2 from the following year onwards. Today the Greschl of 1759 is a great rarity among collectors as a result of the brief minting. The Greschl of Maria Theresa was struck for the last time in 1768 in the Prague mint and it is also the last coin depicting the symbols of Bohemia Moravia and Silesia instead of the monarch’s portrait.

The Kingdom of Bohemia, sometimes in English literature referred to as the Czech Kingdom (Czech: České království; German: Königreich Böhmen; Latin: Regnum Bohemiae, sometimes Latin: Regnum Czechorum), was a medieval and early modern monarchy in Central Europe, the predecessor of the modern Czech Republic. It was an Imperial State in the Holy Roman Empire, and the Bohemian king was a prince-elector of the empire. The kings of Bohemia, besides Bohemia, ruled also the Lands of the Bohemian Crown, which at various times included Moravia, Silesia, Lusatia and parts of Saxony, Brandenburg and Bavaria. Numerous kings of Bohemia were also elected Holy Roman Emperors and the capital Prague was the imperial seat in the late 14th century, and at the end of the 16th and beginning of the 17th centuries.

More on https://en.wikipedia.org/wiki/Kingdom_of_Bohemia