So we have an unsigned master piece. To call that a pigeon grade is to inflate pigeon grades. I see the little pigeon grade icon, but that is several grades above a typical pigeon grade. Whomever owns it is a lucky fellow. Any chance you can trace it back by owners to origin? The grip initials does not ring a bell with me. Never liked those style of letters. Spend too much time figuring out what the order is and what some of the shapes are supposed to be which letters.