Quote: "The referenced “A&T” likely means Adams & Tate the barrel makers. You may find a very small 'A&T" stamp on the barrels ahead of the flats and behind the forend hanger..."

Mike - do you know if A&T stopped marking their barrels at some point? I have a mid-1880s 450BPE Alex Henry double with super clear A&T markings on both barrels where you describe, but there's nothing on this Watson in front of the barrel flats (or anywhere else).