Just completed a neck reset to exact original specs. by
Seattle's top classic instrument luthier. Will never require another.
Purchased for me by my mother at Capitol Music, Olympia
in 1969. (now Capitol City Guitars, I believe)
Elvis's guitar.
Internal Fishman pickup. Great later Martin case.
One or two tiny cosmetic imperfections.
(mp3 recording available on my substack--decades of seasoning/sustain obvious.)

"AI Overview

Over the years, Martin guitars generally experience maturation, with tonewoods losing moisture to become lighter, more resonant, and balanced, typically taking over 40 years to fully mature. While pre-war models are iconic, modern manufacturing (post-2018) has increased consistency by correcting neck and fingerboard specifications. Older models often see issues like pickguard cracks, while 1970s models are sometimes considered to have lower quality control compared to other eras."