German Gold 1 Ducat "Aureus Magnus Issues. Pope Pius XII" 1958 X# M40

Obverse
Denomination in center of 6-pointed cross, lilies in angles
Lettering: I DUCAT PRO PROSPERITATE MUNDI AUREUS MAGNUS 980

Reverse
Bust of Pope Pius XII left
Lettering: PIUS XII.PONTIFEX MAXIMUS 1876 1958