that arrowhead doesn't look like any I've ever seen and the meg tooth is curved like a tusk, not triangular and serrated like a shark's. Are the cut letters in the person's handwriting? That'd be cool, but the 'relics' of scraps of pages from a book are definitely not cool.
I know its not you but that meg tooth is definitely not a meg tooth. Not even a fragment of one. It looks like the t rex tooth or the pterodactyl tooth you can get. You should contact the company and ask.