Trojak gdański - August III Sas Gdańsk mint

By 1758, the Gdańsk trojak was something of an anachronism — the three-groszy denomination had been a Polish monetary staple since the 16th century, yet August III's government was by this point so financially hollowed out by Saxon court expenditure and the disruptions of the Seven Years' War that maintaining a coherent coinage policy was largely a fiction. The Gdańsk mint operated with unusual autonomy as a civic institution, which explains why its billon issues from this reign tend to be more consistently executed than comparable output from the crown mints at Warsaw or Kraków.

The Iger G.58 reference is specific to the 1758 die pairing — collectors should note that this year produced multiple variant reverses distinguishable by punctuation differences in the legend.