These maps appeared in the book, "The Battle Below, Being The History of No.3 Squadron A.F.C." by H.N. Wrigley and published in 1935Errol. G. Knox of Sydney. As a result this book is rare and demands a high price on the second hand book market, making it difficult to find as well as expensive. The maps below are the maps Wrigley used to describe the area of operations of 3 Sqn during their time on the Western Front between September 1917 and February 1919.