while the wide grain appears Adi , the color is wrong. Also with the back cross grain support missing , your top is a lower grade Sitka. Also just because the grain is wider , the wider grained top is often stiffer . Still it is a nice Martin . Not a bad guitar
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans http://www.bluescreekguitars.com