This product consists of four original aircraft identification books from the era of 1914-1945, specifically focusing on World War II (1939-1945). These books are a valuable collectable item for enthusiasts interested in militaria, with a focus on aircraft used during this period. Originating from the United Kingdom, they provide a detailed insight into the various planes used by the British military during the conflict. Perfect for collectors and history buffs looking to expand their knowledge of aviation history from this significant era.