Iron Age penannular brooch. A late Iron Age to early Roman bronze penannular brooch with coiled terminals and ribbed decoration to the frame. CF. Hattatt 114 - 115, 1st century AD. 30mm,
Hand Woven Shawl with Celtic Copper Penannular Brooch. Pagan Clothing — Celtic Fusion ~ Folklore Clothing
Paisley Penannular Brooch - Copper and Turquoise - Celtic , Viking or Scottish pin - Copper wire and Turquoise
bossed penannular brooch; penannular brooch | British Museum