Sancy I of Portugal. Henry III of France suffered from premature baldness and tried to conceal this fact by wearing a cap. As diamonds were becoming increasingly fashionable at the time, Henry arranged to borrow de Sancy's diamond to decorate his cap. Henry IV also borrowed the stone, for the more practical purpose of using it as security for financing an army. Legend has it that a messenger carrying the jewel never reached his destination, but de Sancy (by then Superintendent of Finance) was convinced that the man was loyal and had a search conducted until the site of the messenger's
3M to the Sound 80 studios in Minneapolis. After drawing on the experience of that prototype recorder, 3M later introduced in 1979 a commercially available digital audio recording system called the "3M Digital Audio Mastering System", which consisted of a 32-track digital audio recorder and a companion 4-track digital recorder for mixdown & final mastering. 3M later designed and manufactured several other commercially available models of digital audio recorders used throughout the early to mid-1980s. 3M launched "Press 'n Peel" in stores in four cities in 1977, but results were disappointing. A year later 3M instead issued free samples directly to