Trojak koronny - Stefan Batory Olkusz mint

Stefan Batory's Olkusz mint was reopened specifically to support his military campaigns against Ivan the Terrible, with silver drawn from the nearby Olkusz mines — some of the most productive in Central Europe at the time. The 1580 trojak falls directly within the Livonian War period, when Batory was financing a series of aggressive eastern campaigns that would eventually reclaim Polotsk and push deep into Muscovite territory.

Olkusz production of this type is documented with several die varieties under Igielski's classification, making reference-matching worth the effort on any sharper example.