The product is a book titled "AJP 24 Gloster Gladiator" by A.A. Milne. It is written in English and originated from the United States. The book likely contains information and possibly illustrations related to the Gloster Gladiator airplane or possibly a fictional story involving the plane. The author's expertise and knowledge about military aviation, particularly the Gloster Gladiator, would make this book a valuable resource for enthusiasts or historians interested in the subject.