⅓ Thaler - Max Gandolf von Kuenburg Brandenburg-Prussia, Countermarked

Max Gandolf von Kuenburg, Archbishop of Salzburg from 1668 to 1687, governed one of the wealthiest ecclesiastical territories in the Holy Roman Empire — its silver mines at Gastein and Rauris fed a prolific mint output throughout his episcopate. The Brandenburg-Prussia countermark on this piece reflects the fractured monetary reality of the Empire, where foreign and regional coins circulated freely and local authorities restruck or countermarked them to assert tariff control or validate them at a specific exchange rate within their jurisdiction.

The Zöttl reference places this among a documented series of countermarked types, suggesting systematic application rather than incidental reuse.