A book that looks back at the history of the Japan Air Self-Defense Force through photographs. FOR THE BLUE SKY: 50 Years of the Japan Air Self-Defense Force Corners are bent, and there are bends in the image borders. There are no stains. I apologize if I overlooked any writing or markings. It can still be used, but please take a look at the images and confirm. For those who understand and accept used books, thank you.