Secrets of the Sky by Guido Ruggieri
1969. 174 pages. Black pictorial jacket covering identical boards. Book is in better condition than most examples of this age. Neat, clean, well bound pages with very minimal foxing, tanning and thumbing. Small inscriptions and neat labels may be present. Boards have mild shelf wear with light marking and corner bumping to boards. Clipped jacket has very light markings to covers and spine.