I have an old Remington 12 guage pump shotgun that was given to me, handed down from my grandfather. It looks to have had leather on the pump and on the top of the barrel, it has "Remington Arms Co, Ilion NY USA", next line says "Patents Feb 3, 1903, May 15, 1905. It is a bottom eject and on the bottom where it ejects, has what looks like the letter "U" and then below that the numbers "14240" and below that what looks like the number "16".. It's in pretty sad shape, but I'm wondering what model it is and if it's worth restoring or should it just be a Wall Hanger??