Bought a pair of circa 1970 Superposed shotguns yesterday ! A 28 gauge skeet gun with 28” barrels and a 410 with 26 1/2” barrels both made in 1970 . They should fit in nicely with the circa 1965 20 gauge skeet 26 1/2” and circa 1967 12 gauge skeet 26 1/2” I already have ! Just to keep things level I need to acquire a nice 32” Broadway ;)
The 28 gauge from the GB pics .