Grosz koronny - Stanisław August Poniatowski Kraków mint

The copper grosz of 1765 was among the first coins struck under Poniatowski's authority after his election in September 1764 — an election engineered in no small part by Catherine the Great, whose troops surrounded Warsaw during the sejm vote. Monetary reform was a stated priority from the outset; the Commonwealth's copper coinage had been in a degraded, chaotic state for decades, with privately minted boratynki still circulating at wildly inconsistent weights.

The Kraków mint's involvement in the 1765 issues was short-lived. Warsaw would soon dominate production as the reform program centralized.