Plaquettes are small, flat, often rectangular or square objects that serve various purposes, including commemorative or decorative functions. They can be made from materials like metal, wood, or ceramic and are often inscribed with text or images. Plaquettes are commonly used to honor individuals, mark significant events, or display artistic designs. In art and history, plaquettes can be considered a form of relief sculpture, where the design is raised above the background. They have been used since ancient times, with notable examples found in Roman and Renaissance art. Collectors and historians value plaquettes for their aesthetic appeal and cultural significance.