A sub-triangular or shield-shaped copper-alloy seal matrix. The design is heraldic: a shield with three fish (pike?) on a field of crosslets. Above the shield, there is a bar, which appears to be unconnected with the heraldic device, and has markings resembling '.H H H H.' There is no legend. The reverse is plain, except for a median rib and a pierced suspension lug at the top.