Brigantine Bracelet
This design is from the 2nd Century CE, found in a Roman Fort excavation in South Shields England. It is based on a pair of horse harness mounts made in bronze. Interestingly there is a similar horseware design from Clwyd in Wales that dates from the 1st century AD.
Lengths range from 15cm (6inch) – 21.5(8 1/2 inch).