Arm rings such as these, which are usually found in Ireland and date to between A.D. 880 and 930, were worn around the wrist and were also used as currency.
Full article can be found here: https://archaeology.org/issues/may-june-2022/features/scotland-galloway-viking-age-hoard/
Date range should be 880 AD to 930 AD.
Whoops! Accidentally clipped it. Thanks!