Salvatore Ferragamo is an Italian luxury goods company, with headquarters in Florence, Italy. It specializes in shoes, leather goods, Swiss-made timepieces, and ready-to-wear for men and women. The company licences eyewear and watches. Throughout its history, the company has been known for innovative designs and use of materials. Such ingenuity goes back to Salvatore's time in California, when he studied anatomy to make shoes which were more comfortable. Notable innovations include the wedge heel, the shell-shaped sole, the ‘invisible’ sandal, metal heels and soles, the 18-carat gold sandal, the sock-shoe, sculpture heels, and the gloved arch shoe created for the Maharani of Cooch Behar in 1938.