Florence: Nijhoff, 1932. First. paperback. Translated by Alba Buitoni. Volume 1: Dal VI alla Fine del XIII Secolo with 380 b/w illustrations; Volume 2: La Scuola Senese del XIV Secolo with 422 b/w illustrations. Tall very thick 8vo, stiff printed wrappers (a bit soiled and with hand-written spine titles; internally clean). Firenze: Martus Nijhoff/Leo Olschki, 1932, 1934. First editions. A very good copy with ownership signature of art historian Meyer Schapiro. very good.