Indy-Guy
12-28-2010, 10:46 PM
Answer is musical tuning forks.
Link below will tell you the history.
http://www.global.yamaha.com/about/corporate/brand/tuning_fork_mark/index.html
Link below will tell you the history.
http://www.global.yamaha.com/about/corporate/brand/tuning_fork_mark/index.html