This is a beautiful souvenir sheet, issued by St. Thomas & Principe in 2010, illustrating the most expensive paintings of all time. Featured famous works of art include one of the most expensive paintings ever sold "Portrait of Adele Bloch-Bauer I" by Austrian Symbolist painter Gustav Klimt, Picasso Blue Period painting & most expensive Picasso painting ever sold "Femme aux Bras Croisés (Woman with Folded Arms)" by Spanish Cubist painter Pablo Picasso, "Portrait of an Artist Without His Beard" by Dutch Post-Impressionist painter Vincent van Gogh, and "Dora Maar au Chat (Dora Maar with Cat)" also by Picasso. The sheet is Post Office fresh, mint never hinged, and F/VF.