North British style of plate brooch. It is first found in the mid 1st century ad as a plain metal plate with an arm at the tip for use as a hinge and another at the bottom to serve as a catch. This developed into a rich piece for formal design with elaborate fanciful terminals and enamelling on the plate in roundels, lozenges, or squares, becoming ‘dragon‐like’ in appearance. It was manufactured in northern England and southern Scotland and enjoyed a wide distribution that includes examples from the continent. The type ceased production in the late 2nd century ad.