10 Ducats - Aureus Magnus Denmark

The "Aureus Magnus" pieces issued in West Germany during the 1950s were private gold medallions struck by Bavarian minting houses to satisfy bullion demand in the early years of the Federal Republic, when ordinary citizens were still legally restricted from holding monetary gold. Marketed under grandiose Latin names and denominated in historical "Ducats," they had no legal tender status anywhere — the Danish royal connection implied by "Denmark" is essentially decorative, borrowed for prestige rather than authority.

X#M21 places it firmly in the Unusual World Coins catalog's "fantasy" category.