This is a vintage 1982 International Museum Collectors Plate from The Masterpiece Stamp Plate Series titled "Portrait of Michelangelo by Rafael". It is plate #927.
This artwork is based on the original stamp series "Letter Writers" issued in 1973.
This 8.5" plate is in great pre-owned condition in the original styrofoam with a COA. It would make a beautiful addition to a collection.