A complete vesica-shaped copper-alloy seal box of the Roman period. The hinged lid is decorated with enamel of various colours in a design consisting of symmetrically arranged circles. Seven small circles form a five-cell by three-cell cross, with two concentric rings around the central cell. The four cells making up the lengthwise arms of the cross contain red enamel. The two cells making up the shorter transverse arms contain yellow enamel, and the central cell is empty. The two annuli formed by the concentric rings, and the space between the outer ring and the edge of the box, all appear to retain traces of blue enamel. The bottom of the box has four holes arranged in lozenge formation. The hinge has a copper-alloy pin and there is a second perforation in the lug.