Grupo Sanborns Mexico City tourist attraction and national monument. This is probably the world's only pharmacy decorated with a mural by José Clemente Orozco. In 1946, Frank Sanborn sold his interest in Sanborns to fellow pharmacist Charles Walgreen Jr. of Chicago. Like Walgreens, Sanborns does not use an apostrophe in its name. In Sanborns' case, it is due to the Spanish language not using apostrophes to indicate possession. Walgreens sold its interest in 1985. Currently, Sanborns is a unit of conglomerate Grupo Carso which itself is controlled by Carlos Slim, the fourth wealthiest billionaire in the world as of 2016. Sanborns controls
Carlos Slim Telmex and made it into a privately held subsidiary. In 1991, he acquired Hoteles Calinda (now OSTAR Grupo Hotelero), and in 1993, he increased his stakes in General Tire and Grupo Aluminio to the point where he had a majority interest. In 1996, Grupo Carso was split into three companies: Carso Global Telecom, Grupo Carso, and Invercorporación. In the following year, Slim bought the Mexican arm of Sears Roebuck. In July 1997 Grupo Carso agreed in principle to sell Procter & Gamble de México, a subsidiary of The Procter & Gamble Co., a manufacturing plant in Apizaco and the company's