1971 MARTIN  D28, Natural, EX+ code AC775 

Back and sides looked more like Brazilian rosewood than East Indian some guitars were made with that tonewood after 1969, as old stock emerged.

It has an incredible tone. It can be sweet and chimey, with a bassey richness that only comes from beautifully crafted instruments that have aged and been frequently played, or stand it's ground against the loudest of banjo's. Back and sides looked more like Brazilian rosewood than East Indian,some guitars were made with that tonewood after 1969, as old stock emerged.

Same as 1971 Martin D-28 guitar, known as The Bon Aqua, was kept at Johnny Cash’s :

http://orgs.usd.edu/nmm/PluckedStrings/Guitars/MartinGuitars/10770/10770MartinGuitar.html

 

E.Clapton: this vintage D-28 was used for the solo acoustic première of "Broken hearted" at Montserrat Concert in september '97.

Bob Dylan concerto per il Bangladesh con una Martin  D-28

John Frusciante  Martin & Co