This vintage "Tesalica" Art Pottery Vessel by Artist César de las Heras (b. 1966) is a unique and handmade piece of art from Spain. This square-shaped vessel features four geometric patterns - a different one for each side - created with inlaid glass tiles to form a mosaic. This is the Tesalica method that the artist created as a signature style in the late 1990s, early 2000s. Signed by César de las Heras with his initials CH, this medium-sized stoneware and glass vessel stands at 5 inches tall and 4.9 inches wide. Each side of the vessel has its own geometric pattern featuring combinations of green, blue and white glass. It weighs just under 2 pounds.