After Pratt, Bald joined the Englewood, New Jersey, studio of Jack Binder, one of the early comic-book "packagers" who would supply complete comics on demand for publishers entering the new medium during what became known as the Golden Age of Comic Books. His first known professional comics work, via Binder, was the seven-page story "Justice Laughs Last," starring the super-speedster Hurricane, in "Captain America Comics" #7 (Oct. 1941), from Marvel Comics precursor Timely Comics, Beginning in 1942, Bald, also via Binder, began drawing features including Golden Arrow and Bulletman for Fawcett Comics.