Thanks for posting the new images , Roderick .
As the other members (that are way more 'quick on the draw') have commented , Sure as heck looks like a matched & presentation-cased pair of Vicky-era ladies' jewelry items for the wrists !
Having the case increases the value a bit too , IMO .
I'd take out a magnifying device of some sort (jewelers' loupe) & check for hallmarks/sigs (everywhere) , just in case .
I'm guessing that you already know , but you can have the gold content determined by a decent jeweler , which is kinda nice to know for certain ....
Saw a pair of cased Tiff ones go for $8500+ in NYC , a few years ago .
I like the nice patina too (O.K. to give it a gentle dry 'toothbrush' brushing if there's 'skin gunk' , but not a polishing , IMO) , as Ipcress noted .
Thanks for giving us a peek @ them , Roderick !