Pablo Picasso. In the Studio: Unique Works from the Collection of Marina Picasso Pablo Picasso 1881 - 1973 Décor informel dated 30.5.63. on the reverse painted and partially glazed ceramic; round plate Diameter: 25.5cm., 10in. Executed on 30th May 1963, this work is unique. Claude Picasso has confirmed the authenticity of this work.