30 Ducats - Aureus Magnus Manhattan

The "Aureus Magnus Manhattan" designation points to this as a privately commissioned German gold piece of the late 1950s, a category of large-format bullion strikes produced outside the official Bundesbank framework and intended primarily for export sale and collector portfolios in the United States — hence the Manhattan reference. These were not legal tender and carried no state guarantee, occupying a grey zone that West German monetary authorities largely tolerated during the dollar-flush postwar recovery years.

The X# prefix in the standard reference confirms its non-circulation, non-governmental status. At 103.5 grams of high-fineness gold, the piece contains just over three troy ounces of fine metal.