The gray and beige marble fragment of a decorative relief is embedded in the wall between the pointed peaks of two window arches. It is shaped like a square whose top corners are rounded into a semicircle. Its thick border is partly damaged, and missing on the bottom, where the fragment was probably broken off from its source. The design of the relief is symmetrical, about a central vertical stalk dividing the image in two. The stalk is topped by an oval object which looks like a stylized leaf, flower bud, or fruit, with V-shaped striations, and shallow drilled holes between them.  In the left half of the image, there is a creature seen in profile view, standing on its hind legs and supporting its front legs on the stalk. Its body is similar to that of a lion, with strong legs, a supple abdomen, and a strong chest. Its long tail with a tuft on the end comes down between its legs and bends upward by the right side of its body. We see a wing arising from the front side of its body above the front right leg, curling towards its long, inward curving neck. Its head is that of a bird, with a thick, downward-curved beak, and rooster-like hanging wattles. It also has long, upright ears, and a visible right eye. The creature is pecking the oval end of the stalk and supporting its hind legs on a curled stalk offshoot. The curl is framing the bird-like head of another creature, whose neck is visible below the offshoot. Its body is cut off by the bottom of the relief. The right half of the image is a reflection of the left one.