First appearance: Exciting Comics #51 (September 1946 issue), published by Better Publications (also known at different times as Pines, Nedor, or Standard).
Last Golden Age appearance: America's Best Comics #31 (July 1949).
Many years (decades) later, she would eventually return in stories from AC Comics (the company that produces FemForce); in Alan Moore's Tom Strong and Terra Obscura titles; as well as in the Project Superpowers series from Dynamite, though there she would be called "Masquerade" and be given a unique ability.