Today I found the other shotgun from the "matched pair" that the owner broke up 25 years ago.
My father was in Dan Bailey's fly shop in Montana some 20+ years ago and saw a shotgun he liked. Long story . . . but he bought No. 2 of a pair of Lebeau-Courally 16 gauge guns.
I called today and talked with John Bailey, who sold the gun to my father. He still has the other gun! Said it's his favorite, and that he has no plan to sell it.
He also said the man he got the pair from lived in Belgium, and he used "my" gun for ducks, shooting tens of thousands of ducks with it to protect the crops. The one I have is choked mod and full and weighs about 6 1/4 pounds. The one John has is more open and weighs 5-14.
I was hoping to reunite the pair, but that's not going to happen at this time. Still, it was good to discover where the mate is, and that it's still hunting.