INVADERS (1975) #7

Part 1 of 3 - "The Blackout Murders of Baron Blood!" Written by Roy Thomas. Art by Frank Robbins and Vince Colletta. The Invaders come face-to-face with the nightmare that is Baron Blood. Plus, meet Union Jack, masked avenger from World War I. 1st appearance of Baron Blood, 1st appearance of Union Jack (James Falsworth) and 1st appearance of Jacqueline Falsworth (she becomes Spitfire in Invaders #12). Marvel Value Stamp