SAK7-01-CD Secret Agent K-7 Returns | Border Violations | | 1938 |
| Secret Agent K-7 Returns | Poisonous Gas | | 1938 |
Secret Agent K-7 Returns | Information Peddler | | 1938 |
Secret Agent K-7 Returns | Narcotics Peddlars | | 1938 |
SAK7-02-CD Secret Agent K-7 Returns | Sabotage In Industry | | 1938 |
| Secret Agent K-7 Returns | Fortified Borders | | 1938 |
Secret Agent K-7 Returns | Blood And Steal Society | | 1938 |
Secret Agent K-7 Returns | Illegal Use Of Radio | | 1938 |
SAK7-03-CD Secret Agent K-7 Returns | Coast Defense Secrets | | 1938 |
| Secret Agent K-7 Returns | Suicide Ships | | 1938 |
Secret Agent K-7 Returns | War Supplies | | 1938 |
Secret Agent K-7 Returns | Revolution | | 1938 |
SAK7-04-CD Secret Agent K-7 Returns | Military Secrets Leaked | | 1938 |
| Secret Agent K-7 Returns | Undesirable Aliens | | 1938 |
Secret Agent K-7 Returns | High Speed Bomber | | 1938 |
Secret Agent K-7 Returns | Master Spy | | 1938 |
SAK7-05-CD Secret Agent K-7 Returns | Gold Shipments | | 1938 |
| Secret Agent K-7 Returns | Storm Cloud | | 1938 |
Secret Agent K-7 Returns | Apparent CivilWar | | 1938 |
Secret Agent K-7 Returns | Air Defenses | | 1938 |
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