You should be able to remove the wedge across the forend & unhook the barrels from the breech. The top screw does not have to be removed to take the barrels off. If it has proof marks they will be on the underside of the barrels. If it is UUS made it will either have no proof marks or perhaps provisional proofs if the barrels were purchased abroad.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra