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Description: | Incomplete copper alloy two-piece Colchester Derivative (Polden Hill) brooch of Roman date (43-150AD). The brooch is incomplete. The bow of the brooch has a curved (comma shaped) profile, and has a D shaped cross section. It is 77mm long, 14.9mm wide and 13.6mm thick. The body of the brooch tapers from a thick rounded head to a small bulbous foot below the catch-plate. The wings project at 90 degrees from the bow. These are sub-rectangular in plan, but have a D shaped profile, with a cast concave depression on the back. The projecting wings measure 8.9mm long, 29.6mm wide, and 5.2mm thick. At the end of each wing is a circular end plate with a diameter of 8.6mm. In each end plate there is a small circular hole (diameter of 2.6mm) for attaching the axis bar. The brooch weighs 29.68 grams. The pin mechanism and axis bar of the brooch are not present. The pin would have been attached by the central axis bar which passed through the two small circular perforations in the endplates. The spring mechanism would have been held in place by a rearward facing hook. This projects from the centre of the head of the brooch and measures 3.7mm x 3.9mm x 1.4mm. The catch-plate has broken and only a small fragment survives. The catch-plate is formed from a central rib that begins halfway down the length of the body. This rib expands and is triangular in profile, with one side being slightly concave. The surviving catch-plate measures 38.7mm length, and 7.7mm in width. It is impossible to judge whether the catch-plate was originally perforated as the broken end is abraded and damaged. The foot of the brooch is bulbous knop, which formed from the base of the catch plate. It is 5.1mm in diameter with a small cast collar above the terminal. There are few cast decorative motifs on this brooch. The largest of these is on the head of the brooch. Here the rearward facing hook is located on top of a cast semi-circular raised area. Other areas include: two raised semi-circles either side of the body of the brooch where they meet the wings; and a small series of raised pellets alongside the catch plate forming a small ridge. The brooch is of a mid-dark green colour with an even patina which covers all the surfaces of the body and also on the wings. The brooch has been abraded and rolled in the plough soil so much of the original surface has been lost. The foot of the brooch has also been damaged and bent, causing it to become asymmetrical. Similar brooches can be seen in Margaret Snape's book; Roman Brooches of North Britain, 1993: pp 10-13, fig 1.9
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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