From Martin:

"With a gorgeous glossed Sitka spruce top and ziricote back and sides, this solid wood Grand Performance cutaway model is a great sounding guitar at an affordable price. New to this model are stunning mother-of-pearl pattern fingerboard and rosette inlays, a multi-stripe rosette border, and white binding. It has an FSC® Certified Richlite® fingerboard and bridge, gloss body, and a hand-rubbed neck finish. Also new to this model is a Fishman® MX-T electronics package with a built-in soundhole tuner that auto mutes the audio output so you can tune up any time without using a pedal. This guitar comes with a burst option and Premium Soft Shell Case so it is Road-ready to join you on all of your adventures! Due to material availability the GPC-13E is designed with either a tortoise pattern or black pickguard, and comes with a soft-shell case or soft gig bag. Selection may vary."

Natural, Grand Performance 14 Fret Cutaway body shape, Sitka Spruce top, Scalloped X bracing, Mother of Pearl pattern with multi-stripe Rosette, White binding with the multi-stripe top inlay, Ziricote fine veneer back and sides, FSC certified Richlite fingerboard with the Mother of Pearl pattern Style 28 position markers on a performing artist w/high performance taper shaped select hardwood neck, 25.4″ scale length, 1 3/4” nut width, With the Fishman MX-T pickup system and deluxe gig bag