we tend to forget little details here, like how did the poor sod who had to carry one of these weapons for hours on end actually do that. i like to get an appropriate sword belt/frog/carrier/baldric for my swords where possible, or a close approximation.
the 1902 U.S Army sabre scabbard has two carrier rings. early sling straps had a pair of straps of unequal lengths terminating in two hooks with screw locks on the sword end and a single wide snap hook on the other that snapped onto a square metal loop protruding from the leather belt loop/clothing shield. looks a lot like a jeb stewart (patented) hanger. this was later replaced (see below) by a single fancy chain for the rear scabbard ring, the front ring hung on the hook. while that looks OK for dismounted carry, not having a 1902 sabre, i'm not sure how that would balance if you were actually mounted. i do have a couple of swords/sabres with single ring scabbards that, while not historically correct, this will do nicely if i ever do want to wear one of the single ring swords, at least until the real thing comes along.
p.s. - made in france.