This vintage 3-unit hardcover set is a 15th edition of the Encyclopedia Britannica, originally printed in 1768, and now available for collectors and reference enthusiasts. The volumes, published by Encyclopædia Britannica, Inc in 1987, cover various topics and come with an index and Propaedia. The books are written in English and are in their original/facsimile form.

The publisher's location is Chicago and Oxford, with a country of manufacture in the United States. This antique item is categorized under Books & Magazines and Antiquarian & Collectible, with a California Prop 65 Warning. It has special attributes as a 15th edition and is authored by various experts, making it an excellent addition to any book collection or an invaluable source of information for research.