How did you find out who built your guitar? I thought standard Martins were made on a line and not by a single luthier. I'd love to find out more about mine. As I said above, It's the nicest dreadnought I've ever played. Mine is not mint condition like Guest From Sanity. I has definite wear scars, but it's nearly 50 years old. Never been refinished nor had a neck set. It has had a few fret dresses and had a top crack repaired. The present tuners are Gotohs, but the old Klusons are still in the case.