hollow, with transverse perforations, [389], [398], [399];
interlinked, [405];
Irish, in pairs, [389];
on loop of celt, [118], [158];
penannular, [198], [390], [391];
and plates as ornaments for horse-trappings, [404];
and pellet ornament, [124 to 127];
stone mould for, [158];