An incomplete enamelled copper-alloy seal-box lid of the Roman period.

The lid is flat, and circular in plan, with a single hinge-lug and a terminal knob projecting from the edge at diametrically opposite points. On the underside of the latter there is the the stump of a location pin. The lid is decorated with an outline arcuate cross within two circles. The centre of the cross, its four quadrants, and the surrounding band between the two circles were originally enamelled, but only decomposed traces survive, and the colours are uncertain.

Although the identification of these objects as seal boxes is generally accepted, there would seem to be no hard evidence for this use.