1/4 Stüber - Frederick II Mule

A mule — paired dies not originally intended for each other — this piece combines dies from the East Frisian 1/4 Stüber coinage during the first years of Prussian administration following Frederick II's acquisition of the territory in 1744. The references diverge slightly in their classification, which itself reflects ongoing uncertainty about whether the pairing was deliberate emergency production or a simple mint error at Aurich.

East Frisia's absorption into Prussia was administratively awkward; existing coining equipment and die stock were retained rather than immediately replaced, creating a transitional window in which hybrid strikings like this one were entirely plausible.