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Description: | Roman copper alloy Aucissa brooch, weighing 10.02g and measuring 50.35mm in length.The wingspan is 22.02mm and a flattened knop adorns either end of the rolled-forward cylindrical wings, to hold the iron axis bar in place (iron corrosion is apparent at either end and the very tips of the axis bar can be seen in the knop). The hinged pin has corroded in place. It is 43.56mm long and copper alloy.The head projects outwards from the wings at 90°. It consists of three horizontal panels, the first and last of which are c.16mm long and 3-4mm wide. The middle panel is 12.09mm long and 2.07mm wide, the ends cut in a C- and backwards C-shape. The two outer panels are decorated with a central groove and diagonal incised lines.The upper bow has a pronounced curve below the head. The edges are hammered slightly upwards to give a rib effect. Along the centre of the bow is a wide flat mid-rib 3.67mm wide at the top of the bow (which is 9.86mm wide) and tapering to 2.85mm wide at the bottom of the bow (which is 6.04mm wide). This mid-rib has slightly raised sides (to give a rib effect) and raised diagonal lines in the centre. The two channels either side of the mid-rib are apparently plain. At the base of the bow are two pairs of thin horizontal ribs, possibly with additional incised decoration (now invisible beneath surface concretion) and below this the lower bow extends in a curve. Either edge slopes downwards from a central ridge. Below this, and standing vertical, is a plain square panel. The foot - a circular rib and rounded terminal knob (6.36mm diameter) - extend below.The catchplate extends from the base of the curve and behind the foot. The pin extends vertically (where it has corroded in place) from the tubular wings. It is 43.71mm in length and max.2.57mm in diameter.Cf. Bayley and Butcher 2004, fig.50. The Aucissa brooch (so-called after a number that have been discovered with the maker's name scratched on the head) was introduced with the army in AD 43 and is often known as the 'soldier's brooch' as it appears widely on military sites during the first phase (to AD 70). It has also been found on non-military sites however, and it is likely the type was copied by local manufacturers.
Original Image | Publisher: | http://finds.org.uk | Source: | Portable Antiquities | Identifier: | http://finds.org.uk/database/artefacts/r... | Go to resource |
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