THE HURTER-AMMAN COLLECTION OF ANCIENT AND WORLD GOLD AND SILVER COINS (g) Italy, Vatican, Gregory XVI (1831-1846), Doppia, 1833 R [Anno III], Rome, bust left, rev. St Peter seated, edge straight mill
THE HURTER-AMMAN COLLECTION OF ANCIENT AND WORLD GOLD AND SILVER COINS (g) Italy, Vatican, Gregory XVI (1831-1846), Doppia, 1833 R [Anno III], Rome, bust left, rev. St Peter seated, edge straight mill