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Description: | Roman cast copper-alloy Colchester two-piece brooch with sprung pin dating to the first century AD. The brooch consists of the head with the remains of the spring in situ, the bow and catchplate. The head has semi circular sectioned wings, concave at the back to accomodate the spring. At the centre of the head is a double pierced lug. The lower piercing has a seperate copper alloy wire cross bar running through it, now broken at one end, around which the spring is wound, also made from copper alloy wire. Only 50% of the spring now survives, the coils to the left of the lug are missing. Were the mechanism to be complete, the spring would have coiled around the cross bar before passing over the head and through the second and upper piercing before coiling around the left side of the lug. The pin is now missing and would have been formed from the wire continuing vertically down to the catchplate from the spring mechanism.The bow curves gently from the head. The centre of the bow has a ridge running the entire length with a smaller more prominent ridge on top towards the head. This has a notch in the width before expanding to form the upper perforation of the spring lug. Each side of the bow has a slight tidge emphasising the edge. The bow has a flat back and tapers gradually in width from the head to the foot.The catchplate forms a trapezoidal shape on the back and centre of the bow, with an open triangular gap in the centre. The outer edge is curled over to produce a rest for the pin and the upper edge of the projecting side is ridged to emphasis the shape.The brooch has a pale green patination, whilst the spring has a redder colour. The brooch has waxy residues on the back of the catchplate and wings and on the front of the head. It measures 33.0 mm long, 20.5 mm wide at the wings and 5.2 mm at the bow and 13.3 mm thick. It weighs 7.71 grams. Bailey and Butcher (2004; 84), illustrates a similar example, no. 167, and date this type to the mid first century , c.AD 40-65.
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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