Lovely bird-dogging on all fronts. But are there any other import houses that have their initials stamped on the Belgian tubes near the lower rib? Does there exist a set of tubes stamped "Crown Steel" atop with "SB&Co" on each tube near the lower rib? Was "Crown Steel" an American brand/trademark or was it Belgian?

Stallones: are there any stamps on the tubes near the lower rib ahead of the barrel flats?

Kind Regards,

Raimey
rse