Studio Anne Carlton, also known as SAC, produces the most popular collection of theme chess sets in the world. Established in 1969 with an emphasis on ornamental theme chess sets, SAC artist's have designed a broad range of themes based on historical events and history changing people, civilizations and cultures, fictional and storybook characters, famous battles and wars. Chess sets that everyone will find interesting! SAC chess sets are made from ground stone which is cast and fired to a very hard and durable material.