Is their a resource anywhere that lists Sigma serial numbers by year? I just bought a DR12-7, serial # 5168. It has a paper label which I understand indicates early 1970's and it's solid spruce and rosewood. I'd just like to know the exact year.
Just to lose this.thread, it appears the Sigma serial numbers were not recorded by date. However, I noticed that my guitar has a zero fret which puts it in 1970.
dammit ! I clicked into this thread thinking it was gonna be kinky !!!!