Softcover Circa early 1940's. G+ to VG condition. 9 total volumes: "Ice Formation on Aircraft", "Thunderstorms", "Fog", "Air Masses and Fronts", "The Warm Front", "The Cold Front", "The Occluded Fronts", "Flying the weather Map" and "Typhoons and Hurricanes" All volumes lightly rubbed, age-toned. Pages clean. All stapled wraps. Missing Volume 9 ; B&W Illustrations; put out by the BUEARU OF AERONAUTICS, Navy Department, Washington, D.C....Aviation Training Division, U S Navy ALL measures 4 1/2" x 6 1/2" As you can see they have holes on the left side with string holding the set together . A GREAT bit of America 's Military history that is becoming harder to come by and individual booklets are commanding high prices when you find them so this large a grouping is rare.PLEASE NOTE BEFORE BIDDING: By bidding on this auction you agree to all of seller's terms and conditions of auction This means contacting seller within three days of end of sale and making payment within 7 days -- your bid is legally binding per Ebay's terms and policies - Do not bid if you do not intend to follow through with purchase! Insurance - Seller is not responsible for any lost or damaged items if not insured before shipment occurs. Delivery confirmation can be added for $.75 your choice . Insurance is required for all PayPal transactions and highly recommended for all non-paypal transactions to protect both buyer and seller. I do combine shipping to save you on costs, so check out my other listings.