Ha! I wasn't sure if I was being called a troll or someone else was but I love the way this threat is turning out. Dallas, if you are right, and I hope you are, your sleuthing has flipped everything on its head. The OP is wrong in calling it a fake, and initially you as well, and I was wrong in assigning the inscription to the son. How ironic would that be, all of us wrong. And if you are right, the OP now has something much more valuable than he had a day ago and owes you a great big thank you. So a little back and forth between different camps and voila, a stunning outcome.
@Casual is to be thanked as well for prompting the discussion, but you most of all for your diligent work! That said, again, I hope you are right