Why do Portuguese guitars use Preston tuners, and what advantages do these tuners have compared to standard machine head tuners? - Quora
Why do Portuguese guitars use Preston tuners, and what advantages do these tuners have compared to standard machine head tuners? - Quora
![I need help identifying this unusual mandolin, has a different type headstock. Would appreciate to know any and all information anyone has about this mandolin. Also very curious on age. Thank you : I need help identifying this unusual mandolin, has a different type headstock. Would appreciate to know any and all information anyone has about this mandolin. Also very curious on age. Thank you :](https://i.redd.it/i-need-help-identifying-this-unusual-mandolin-has-a-v0-2rmg78a5wnl81.jpg?width=2730&format=pjpg&auto=webp&s=7e7173b41bf931d00e102ea8908e25d2b52c2808)