Translucent cobalt blue and opaque light blue. Flat plaque or inlay, decorated with an upper layer carved out in relief; smooth, flat back. On cobalt blue ground, a fish in profile facing left, with fins, scales, gills, eye, mouth carved as shallow cuts in surface of the upper opaque light blue layer; above fish, bottom edge of a second relief, perhaps another fish. Bottom straight edge, irregular breaks on sides and top; broken into two fragments and repaired; very few bubbles; dulling, limy weathering, and faint iridescence.
1903. Collection Julien Gréau. Verrerie antique, émaillerie et poterie appartenant à M. John Pierpont Morgan. no. 569, p. 82, pl. 59.3.