The archaeology, art history and technology of a 7th to 8th century decorated silver pseudo-penannular brooch from Hunterston in Scotland is discussed with technical details of the method of construction and details of the analysis of the brooch and fastening pin. Ag Cu Sn Pb Zn Au Bi Brooch 62 35 0.6 0.3 0.04 1.9 0.2 Pin 60 35 2.6 1.0 0.2 1.5 0.2 (Method of analysis not stated but probably atomic absorption spectrophotometry.) -- AATA