Jetton by Johann Geroge Busen, mintmaster of Frankfurt mint, on the occasion of teh coronation of Leopold II in 1790.
Plenty of mint bloom.
Obverse: bust of the ruler, to the left
LEOPOLDUS II ROMANORUM IMPERATOR
Reverse: an altar with the ruler's insignia, in section ELECT FRANCOF D XXX SEPT / MDCCLXXXX
FELICITAS PUBLICA
Diameter 26 mm, weight 3.94 g