 Ewers and basins were needed in Christian liturgy for the ritual of the lavabo, in which the officiating priest washes his hands before vesting, again before the consecration of the Eucharist and after mass.As a ritual object, metal was considered more suitable than pottery, although most examples in pottery no doubt were broken and discarded.The aquamaniles made in the Mosan – or Meuse valley – region, using the brass alloy of silvery tint called "dinanderie" (from the center of its manufacture in the region of Dinant) were often fantastic and zoomorphic in their forms, which were constrained only by the need for a larger opening for filling the vessel and a spout for pouring.