D. G. FRID AUG REX POL DUX SAX ARCHIMARESCHALLUS ET ELECTOR
"By the grace of god Friedrich August, King of Poland, Duke of Saxony, archimarshal (supermarshal) and Elector"
http://www.katalogmonet.pl/Katalog/Monety-Rzeczypospolitej-1506-1795/August-III-1734-1763/okolicznościowe/1-halerz-grosz