Basilica of San Vitale, polychrome floor mosaic fragment. The decorative motif is composed of a row of tangent semicircles formed by two tangent spindles, forming alternately inverted thorns.
National Museum of Ravenna, polychrome wall mosaic fragments from the Basilica of Saint Vitale. The angel’s head belongs to the mosaic decoration of the groin vault. One of the four angels, supporting the central clypeus on the south vault frame, was…