A copper-alloy seal-box lid of the Roman period. It is lozenge shaped with rounded knops on three corners, and would originally have had a hinge-lug at the fourth, but it is now missing. The top of the lid is decorated with an overall chequer pattern, consisting of twenty-five lozenge-shaped enamel cells arranged in a five x five grid. Some of the cells retain traces of enamel, but it is too decomposed to determine the original pattern and colours.
See also UKDFD 19682.