Wireless Direction Finding By R.Keen 1938 Publisher Iliffe & sons The book takes a look back through the early history of the study of the Electromagnetic Wave phenomena Hardcover. Fair. Third Edition. 803 pages. No dust jacket. Black cloth with gilt lettering. Pages are clean and bright. Boards are a little rub worn with some slight shelf wear to corners, spine and edges. Corners are a little bumped and spine ends are a little crushed. With some tanning to spine and edges. Diagrams and pictures throughout the book Some notes from the previous owner on the inside page and the inside back page Due to some wear and tear the internal page has slightly come away from the spine Considering it\'s age the book is in fair condition and is still an interesting read.