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Description: | An incomplete cast copper alloy Roman Colchester-Derivative Two Piece brooch, dating to the 1st century, between AD 43 ?? 100 (length: 71mm; width at wings: 27mm; thickness/ depth: 23.5mm; weight: 17.5g). This Colchester-Derivative Two Piece brooch can be classified as a Group ??bi??: ??Crest of groove on the upper bow only: large??, as discussed by Bayley & Butcher (2004; page 86) (see bibliographical details below). At the top of the brooch, there are large, open and ??C?? shaped wings, which hold the spring and axis bar behind them. The wings are decorated with a single diagonal incised groove to either side, which stretches from the top left to bottom right corner. Additionally, there is another single groove running down the wings?? length at either terminal end. There is an integral and angular centrally double-pierced lug at the top of the bow, which still has the cast copper alloy chord running through the top hole and the axis bar running through the hole underneath. The chord itself then forms the spring. Immediately below the pierced lug, there is a decorated crest running down the central length of the bow for 19mm, comprised of a raised platform with a central groove that tapers from a width of 3mm at the top to 1.5mm at the bottom of the crest. The crest is also decorated with a series of small irregular incised lines running across the feature??s width and in two parallel lines created by the central groove. There is no other decoration down the bow. At the bottom of the brooch, however, is a round knobbed foot with a single collar above. At the back of the wings, the cast copper alloy spring mechanism is complete with nine turns either side of the central pierced lug. One of these turns is incomplete, however, due to the cast copper alloy pin being broken and now missing. In the centre of the spring mechanism is a complete cast copper alloy axis bar, which as mentioned before, is still held through the bottom hole of the pierced lug. At the opposing end, there is an integral cast copper alloy triangular-shaped and flat catchplate with a triangular opening in the centre. The catchplate curls to one side, originally to hold the pin when complete and fastened to a piece of clothing. Overall, the brooch is in a slightly worn but good condition with a dark green patina. Similar examples of Group ??bi?? Colchester-Derivative Two Piece brooches are illustrated in Bayley, J & Butcher, S, 2004, ??Roman Brooches in Britain: A Technological and Typological Study based on the Richborough Collection??, page 86, fig 65, ref nos 183-4 particularly. | Subjects: | Colchester-Derivative Two Piece | Source: | Portable Antiquities | Creator: | Johnson, Caroline - Portable Antiquities Scheme | Identifier: | http://www.findsdatabase.org.uk/hms/pas_... | Language: | en-GB | Go to resource |
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