http://www.vintageguitar.com/8559/mary-osborne/ With her husband, Ralph Scaffidi, a trumpet player, she moved to Bakersfield in 1968 where they formed and ran the Osborne Guitar Company, which later became the Osborne Sound Laboratories, a manufacturer of amplifiers and public-address systems. She appeared at the Kool Jazz Festival in New York in 1981 and played at the Village Vanguard two years ago. http://www.nytimes.com/1992/03/06/arts/mary-osborne-electric-guitarist-lauded-in-jazz-world-dies-at-70.htmlmore
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