This pair of reliefs once decorated the corner of a roof or high balustrade. They were set at right angles to each other, and at the corner joint a thick stalk would have emerged from a bed of floppy acanthus leaves to spread out in the vines that encircle large flowers.
Milleker, Elizabeth J. 2000. The Year One: Art of the Ancient World East and West no. 20, pp. 40-1, 205, New York and New Haven: The Metropolitan Museum of Art.