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Date: |
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Description: | A slightly corroded fragment from a cast copper-alloy Roman crossbow brooch (4th century AD). The fragment comprises one of the crossarms including the terminal knob, all cast in one piece. The knob is 'onion shaped' and circular in cross-section with a maximum diameter of 13.9mm. There is a central protrusion, hollow internally. Between the knob and the arm is a groove, then a collar, oval in cross-section. The arm beyond is 12.6mm in length, is trapezoidal in cross-section, and narrows from bottom to top. It has broken at the pin slot, a naturally weak point. In plan the crossarm is broadly triangular, tapering to the knob over a series of notched steps downwards. On the front surface there is a circular punch within each of the three steps with a fourth punch below the uppermost of them. There is a central ridge at the point of break, which is the vestige of the bar that joined the crossarms. Above this is a recess for a central knob to echo the side knobs. Below is the pin slot, with a circular hollow on the side which would have accommodated the axis bar. The fragment has a red/brown cover lightly dusted with light-green and off-white corrosion product. The artefact can be classified as a Type 3/4 crossbow brooch (Swift 2000, 14).
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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