Page from True magazine featuring an illustration of a Petty Girl followed by a printed reproduction of a painting by American watercolorist, Hardie Gramatky of a group of sailboats. Pin-ups by artist George Petty or "Petty Girls" first made their appearance in 1933 and into the 1950s set the standard for American female beauty. The hallmarks of Petty pin-ups are elongated limbs most noted in the legs, a flirtatious smile, and telephones.