The actual disc is 8" in diameter and has on it....JT3D-1,-3,-3B/DC-8 Gas Turbine Engine Performance Calculator. Flight Operations Engineering. The cover reads reads as per the close-up pic.A rather facsinating old piece of aviation memorabilia.
13 other shoppers have this item in their Cart or Wish List
At Molloy's MEGA ANTIQUES CENTRE, Takapuna, Auckland, New Zealand
Specialists in Pacific Islands Items, Victoriana, And a Fascinating Range of General Collectibles