Harold Hersey was an American pulp editor and publisher. He published various magazines in the late 1920s / early 1930s using a blue swastika on the cover of the magazines for good luck. The above cover is from the April 1929 issue of Dragnet Magazine.
Cover of the Fire Fighters magazine, May 1929 issue.
Cover of the Flying Aces magazine, August 1929 issue.
Cover of the Sky Birds magazine, August 1929 issue.
Cover of the Under Fire magazine, January 1929 issue.