Awesome thread on Sigma Guitars...read as much as I could then skipped to page 15 14 & 13 to read the entries made by the illustrious Sterling Webb...this thread must be the authority on Sigma Guitars...Just purchased a Sigma DM 3 with 2nd Gen Logo and 800516 stamped inside...plenty of wear on the fret board which tells me someone loved playing this guitar...(well Shiela that is, since that's her name)...figure it was made in 1980 in Korea (also has the sticker inside saying made in Korea, and also a second set of numbers SK 107466 on the paper label, has an adjustable saddle, open backed tuners, oval thin tuning pegs)...perhaps not one of the coveted Japanese or "N" Sigmas but I love the clear crisp even tone...As someone who makes a living in bars and clubs in the Atlanta area playing some great Telecasters through old Fender amps mostly, this guitar has an even tone that is certainly more Martin like than my Takamine or Guild Acoustics...I appreciate all the info here...looks like a bone saddle and maybe a K&K Pure Pickup/Mic might be the way to get good tone amplified...I consider this a "Poor Man's Martin", which suits me just fine...I love it's tone...
Thanks, Tom Hill