1 Kreuzer Konventionskreuzer

Frankfurt's status as a Free Imperial City — and its right to strike its own coinage — was already on borrowed time when these pieces were minted. The Holy Roman Empire dissolved in 1806, just months after the last of this type left the dies, and Frankfurt was absorbed into the Confederation of the Rhine. The Konventionskreuzer standard itself dated to the 1753 Vienna Convention, an attempt to rationalize the chaotic patchwork of German coinage by fixing silver content across participating states. Frankfurt's adherence to that standard in its final imperial years was, in practice, minting into an institutional void.