Yes, this is real.
Hertz (no first name given) was a German Factory worker. However, his lost his arms when they got caught in machinery. He learned how use his feet and teeth to compensate for his lack of arms. He gained a hatred of machines. During World War 2, Hertz was sent to sabotage American factories. He was defeated by the Golden Age Angel and was sent to prision. Later, in Incredible Hercules issues 129-131 (which takes place in the year 2009), the Armless Tiger Man is seen as one of the villains in the underworld attacking Hercules, Amadeus Cho and Aegis.