"The tables and pictures exhibited in the annex of Memorial Hall, by the following manufacturers and artists of Florentine mosaics, are all made of small pieces of natural stones, inlaid in black marble, porphyry, or other stones." [P. 112.]
United States Centennial Commission. International Exhibition. 1876 Official Catalogue. Part II. Art Gallery, Annexes, and Out-Door Works of Art. Department IV.--Art. Sixth and Revised Edition. Philadelphia: Published for the Centennial Catalogue Company. By John R. Nagle and Company. Printed at the Riverside Press, Cambridge, Mass. 1876.
