Danubian limes. Cast lead mystic plaque. Dacia and Moesia, 3rd-4th century AD. Obv. Rectangular aedicula; on thympanum, fish between two crosses (one missing). Three bands of figures within square frame. In the upper row: vase between two coiled serpents; to left, bust of Mithra; to right, bust of Attis. In the middle row, Helen facing between the Dioscuri on horseback (the Danubian Horsemen); to left and right, two standing figures; two prone figures below the horses. In the third row, sacrificial scene; to left, tripod; in the centre, shepherd hanging animals from tree to left; to right, amphora with three apples and cock standing left. Rev. Plain. PB. 88 x 75 mm. The upper left angle missing. Very rare. Magnificent grey patina. EF.