Sigma Guitars DM-5 Left-handed Acoustic Guitar 6 Strings C.F. Martin Japan 1970s | eBay
Lovely Early 80's Martin/Sigma SDR-35 Dreadnought Acoustic Guitar
Sigma Guitars SDR-35
Sigma Guitars SDM-10E Electro-Acoustic Guitar with Soft Case | Bax Music
Sigma Guitars GMC-15E Aged Satin Electro-Acoustic Guitar | Bax Music
Sigma Martin DM-SG5 Chitarra Acustica Amplificata|Freesoundguitars.com
Sigma Guitars DM12E
Sigma Guitars DT-28H
SIGMA S00M-15E+ | Woodbrass.com
Jaimie Muehlhausen // Vibrosonic Design
Sigma Guitars Dreadnought Acoustic DT-28H
Sigma Acoustic Guitar SOMR-45 | Western Australia Perth Guitar Store — Crescendo Music Perth, Australia
Sigma Guitars
Any Sigma Martin fans out there? Love these guitars! DM-3M, DM-18, early/mid 1980s : r/AcousticGuitar
Sigma Guitars Custom SDR-28S All-Solid D-12 Acoustic Guitar | Bax Music
Sigma Martin DM-18 Japan Vintage MIJ Acoustic Guitar
Sigma DMC-STE Dreadnought Acoustic Electric Guitar - Acoustic Centre
Chitarra Acustica MARTIN SIGMA DM-4C 3B Sunburst. Laboratorio Musicale
DISC Sigma DR-28H Dreadnought Acoustic Guitar, Natural
Sigma by Martin | Vintage Guitar® magazine
I bought this 1978 Sigma Guitar off of Ebay. Got it for about $200 (+ another $200 for shipping from Portland to Chicago!) It had not arrived yet but I would like
