Again, from Wikipedia, “Carisbrooke Castle is a historic motte-and-bailey castle located in the village of Carisbrooke, near Newport, Isle of Wight, England. Charles I was imprisoned at the castle in the months prior to his trial.”  It, or a predecessor, was built as early as 544 A.D. and something was opened in roughly 1100.  When our estimates must vary by centuries, you know it’s an old castle.  So too the unused card, though not quite as far back as that.  Grade: 2