Clean collection of 15 of the 24 Cowan's Chocolates "Educational Pictures: 24 Different Airships" issue each including the redemption coupons that were designed to be sent into the Canadian company in exchange for a recipe book. The cards grade roughly VG to VG/EX with a few lesser but each displaying extremely well. Included are the following: Amundsen's Plane Cadet Canadian Staff Plane The Curtis Ox Flying Boat Free Balloon German Triplane Standard Machine with Radio The Hospital Plane Hydro Aeroplane Parachute Jump Terrible Accident Unloading Gasoline The Vickers' Vulture Zeppelin. 15 cards total of a total of 24 subjects.