Sigma Guitars by C. F. Martin & Co. DM-4 Acoustic Guitar with Hard Case. VGC DM4 - Acoustic Guitars - Indian Land, South Carolina | Facebook Marketplace | Facebook
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SIGMA GUITARS DM 12-1 ~ 12 STRING ACOUSTIC KOREA GOOD CONDITION sn#9302000006 | eBay
Sigma | Katoomba Music
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