Lower Lusatia ceased to exist as an independent political entity in 1815, absorbed into Prussia following the Congress of Vienna after centuries of shifting control between Bohemia, Saxony, and Brandenburg. A "25 Mark" denomination from a margravate that has not governed territory in over two hundred years is purely a fantasy issue — no historical monetary authority backs it, and no such denomination was ever struck in Lower Lusatia's actual history.
Lower Lusatia ceased to exist as an independent political entity in 1815, absorbed into Prussia following the Congress of Vienna after centuries of shifting control between Bohemia, Saxony, and Brandenburg. A "25 Mark" denomination from a margravate that has not governed territory in over two hundred years is purely a fantasy issue — no historical monetary authority backs it, and no such denomination was ever struck in Lower Lusatia's actual history.