The monumental crucifixes of Cimabue, Giotto and their followers have been well studied, turning from Byzantine forms towards increased dynamism and naturalism. Equally, smaller works by French Gothic practitioners in ivory are now beginning to permeate scholarship, mainly through the detailed exploration by Sarah Guerin. The goldsmiths of Siena do not command as much attention. Yet, they hold the key to artistic synthesis in the early fourteenth century. This is proved by the small processional crucifix currently at the National Gallery's iteration of Siena: The Rise of Painting 1300-50, attributed to Tondino di Guerrino. Tondino combines enamel with an intricate gold sculptural presentation of the crucified Christ in this small, portable work. Instantly, the eye is drawn to the central element - the thin, skeletal body hanging from two stretched, emaciated arms. Christ's torso is drawn inwards, his ribs exposed, mimicking a sharp intake of breath. The downward gaze furthe...