3 Pfennig Siege coinage

Minden's siege coinage of 1634 was struck during the Thirty Years' War, when Imperial forces blockaded the city and cut off normal coin supply. Necessity issues of this kind were authorized locally and often produced from whatever metal was at hand — in Minden's case, copper sheet stock rather than prepared coin blanks, which accounts for the irregular flans commonly seen on survivors. The 0.70g weight is light even for the denomination, reflecting emergency production rather than adherence to any standard.