Mattel Matson sold his share to Handler due to poor health, and Handler's wife Ruth took Matson's role. In 1947, the company had its first hit toy, a ukulele called "Uke-A-Doodle". The company incorporated the next year in California. Mattel became the first year-round sponsor of the "Mickey Mouse Club" TV series in 1955. The Barbie doll debuted in 1959, becoming the company's best-selling toy in history. In 1960, Mattel introduced Chatty Cathy, a talking doll revolutionizing the toy industry, which led to pull-string talking dolls and toys flooding the market throughout the 1960s and 1970s. The company went public in
Richard B. Handler 2012, Handler and Chairman of the Jefferies Executive Committee Brian Friedman formed the Jefferies Global Senior Advisory Board, which now includes James D. Robinson III, Lord Hollick, Michael Goldstein, Bernard Bourigeaud, Dennis Archer, Sir David Reid, Gilles Pélisson, and G. Richard Wagoner. In August 2012, Handler played a lead role in saving Knight Capital Group after they suffered a $440 million loss due to a 'technology glitch.' Together with Brian Friedman, Handler structured and led the rescue, which included making Jefferies the largest shareholder with an investment of $125 million. In November 2011, ratings company Egan-Jones issued a negative report