The type name "Blue Green Basin" defined by John Goggin (1968) is somewhat confusing, in that the paste, surface treatment and decoration that defines the type occurs commonly both in chamberpot forms (bacín) and large shallow basin forms (lebrillo). The ware was probably manufactured in Triana. It appears to be a strictly utilitarian ceramic type, with a harder paste and heavier body than most other majolicas.
Hard, cream-colored paste. Walls of vessels are usually ridged. Background is an off-white to tan tin-enamel with blue and green decorations. The everted rim is usually decorated with a series of dashes. Crude floral and geometric motifs in green and blue are most common decorations on body. Most examples are decorated only on rim and exterior, but interior decorations are also known.