That is incorrect. You own the physical piece of art, not the copyright to the art. if I own an original sketch by Charles Shultz of Charlie Brown, that doesn’t

That is incorrect. You own the physical piece of art, not the copyright to the art. if I own an original sketch by Charles Shultz of Charlie Brown, that doesn’t give me any rights to the character of Charlie Brown. If an author gives me a handwritten, first draft manuscript of a new novel, I may be able to sell that physical manuscript but it doesn’t give me any rights to the work itself.