Its most notable character was Johnny Dynamite, created by Pete Morisi.

Heck went on to be one of the architects of what became known as "The Marvel Age of Comics," along with Jack Kirby, Steve Ditko, and Dick Ayers.

While there Heck co-created Iron Man, Hawkeye, and Black Widow.

Johnny Dynamite would later be purchased by Max Allan Collins and Terry Beatty and reprinted in their Ms. Tree title and a limited series they created.

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