I looked up the gun and found the explanation....but get this....Daddy was aboard the USS Hilbert (DE742) Cannon Class Destroyer Escort from 41-46, from its commission to it's decommission. Looking at that class ship's armament, it shows that ship had 3 3"/50 guns, so that gun sight was the model that was used on the ship Daddy served on. How bout that? Ain't that cool?
