I have just completed a new book along with Stan baumwald on insignia of commercial wings used by US Aviation industry. The book has over 3500 color photo's of various wings. It is the most comprehensive book on this subject ever written. It is available at Amazon and also on my website www.1903.com. At my site we are offering a discount.
Aviation Insignia of the United States of America. Reg price $79.00 into special at www.1903.com $59.00.