group of three slender herringbone bracelets

Or at least I think that's what this style of jewelry chain is called?? (pls, somebody correct me if need be?!)

They measure 3.5, 3, & 2.5mm wide and are all around 150mm (6") long, the medium one got an extra (larger) clasp attached to its original ridiculously tiny one, both to make my fumblefingers able to hook it and to add the extra 5mm or so to its length so it'd (barely!) fit around my own wrist with the others.

Both the larger ones have some sort of .925 stamp, one of those also the word "ITALY". The smallest one seems to be stamped "16KGF" so perhaps it isn't actually silver though I thought it was (it tarnishes, then polishes the same way anyway?) and its color once polished is indeed ever so slightly different than the other two. That smallest one also seems likely to be the "finest" in terms of its detail and evident craftsmanship, it simply is just a little bit 'nicer' than the others especially given its size.

I've had the widest for a long time now, the smaller two have come along more recently with various assorted jewelry lots or somesuch...