Lot of four WWII aviation manuals published by the Army Air Forces. The first of the lot is Instrument Flying Basic and Advanced Special Edition. The inside is dated to June 1, 1942, but the special edition stamp is dated to January 15, 1944. The book has some soiling on the cover, but is in overall very good condition. The second book is Instrument Flying Advance, and is dated October 1, 1943. This book has some damage to the spine, and the cover has torn from the spine in some places, structurally the book is still strong and in good condition. The third book is Instrument Flying Technique in Weather and is dated to June 1, 1943. This wear has a discolored cover, but the book is structurally in very good condition, as are the pages. The fourth book is titled Manual of the AT-10 Type Airplane. This book to have been restricted, as the words "restricted" are written on each page. This book is in very good condition. In addition to these manuals, there are loose pages with questionnaires and notes by the original owner. This lot provides a lot of insight into WWII Air Force Training.