Trojak koronny - Stefan Batory Olkusz mint

Stefan Batory established the Olkusz mint in 1578 primarily to exploit the silver-rich lead mines of the region — Olkusz had been a major mining center since the medieval period, and routing that raw material directly into coin production made straightforward economic sense. The trojak, worth three grosze, was the workhorse denomination of his monetary reform, struck in enormous quantities to fund his Livonian campaigns against Ivan the Terrible.

The seven Igielski reference numbers assigned to this type reflect the genuine complexity of die variation across the mint's active years, with differences in punctuation, legend spelling, and heraldic arrangement sufficient to occupy serious specialists.