Sorry Sel, but it's a commonly encountered modern replica, sold to tourists at "pirate-themed" tourist traps. We have seen the exact sample item on the forum many, many times before. See examples in
this thread,
this thread and
this thread; that last one has the story confirmed by Swamperbob, who owns one with the tourist souvenir parchment still attached.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis