Focusing on the differences and similarities between the renowned "Alpais" Limoges ciborium, dated to c. 1200, in the Musee du Louvre, and examples in the British Museum, the National Museums of Scotland, together with two electrotype copies of the "Alpais" ciborium in the Victoria and Albert Museum, this volume uses a cross-disciplinary approach, based on the differing specializations of the authors (curators, scientists and conservators) to examine the group of ciboria. New and previously unpublished information, analyses and conclusions are presented that will serve to locate all the ciboria in their respective artistic and cultural context. Susan La Niece is a metallurgist in the Department of Conservation and Scientific Research at the British Museum; Stefan Rohrs was scientist for vitreous materials at the British Museum and is now at the Rathgen-Forschungslabor of the National Museums of Berlin; Bet McLeod is an independent scholar who was a project curator for the Medieval Europe gallery at the British Museum.