Yes, looks like Trier
https://en.numista.com/catalogue/pieces32169.html
German States: Archbishopric of Trier
Ruler: Clemens Wenzel
Denomination: 1 Albus (1/48 Thaler)
Diameter: 17mm
Obverse: Monogram C W C
Reverse: 1 ALBUS TRIERISCH [date]
Years: 1789 or 1790 or 1791
Engraver: Gotthard Martinengo [G M initials]
Not sure what the C at the end of the monogram is - previous rulers had it also ...
FGC:
Franz
Georg von Schonborn-Pukheim, 1729 - 1756
JPC:
Johann
Philipp von Walderdorff, 1758 - 1768
CWC:
Clemens
Wenzel, 1768 - 1802 [see my drawing below]
EDIT: I saw a German site that said - Clemens Wenzel Churfürst
so maybe that is what the C means. It is an archaic spelling of ...
https://en.wiktionary.org/wiki/Kurf%C3%BCrst#German
'a prince-elector, a member of the electoral college of the Holy Roman Empire'.