I've read it a couple times now in Hunter Arms reprints and the info suggests that Hunter Arms owned an interest in Crucible Steel Company: "Up until 1913 the grading of Smith guns starting from the finest was the A-3, A-2, Monogarm, 5, 4, Pigeon, 3,2,1,0,00, and the Hammer Model. The A-3, A-2, and Monogram had Whitworth steel barrels. The Damascus barrels were still popular and could be ordered on Monogram and lower grades. The 5 down to and including the 3 grade had nitro steel barrels and on the 2 grade crown steel was used. All lower grades had Damascus barrels. Krupp steel barrels were furnished on featherweight guns of A-3, A-2 and Monograms. An interesting piece of history has just been found. It seems that Hunters Arms Co. owned a part of the Crucible Steel Co. of Syracuse, New York and most of the steel for their barrels came from there."
I haven't found what "An interesting piece of history" might be.
Kind Regards,
Raimey
rse