This is a 5-volume set of Bufton's Universal Cyclopaedia, published in the United States in 1924. The set includes a loose leaf extension and is a collector's edition with beautiful illustrations. The books are hardcover and written in English, covering a wide range of topics in reference and encyclopedia writing.

The publisher is Bufton Publishing Company and the set is an original. It is perfect for someone interested in adding to their collection of antique and collectible books. This encyclopedia set is a great addition to any library, providing a wealth of knowledge and information.