1974 Martin / Sigma SBG2-9 Electric Guitar (210 of 250 made) | Reverb
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Amazon.com: SIGMA, Mini Acoustic Guitar, Solid Spruce Top, Dao Back & Sides, Natural Gloss, Rosewood Bridge, Premium Name-Brand Steel Strings, Easy to Travel, Right (20MINI) : Everything Else
Just Guitars Australia - Martin-Sigma E-18, circa 1981
MARTIN PROTOTYPE SIGMA ELECTRIC GUITAR CIRCA 1979-1980. THIS IS AN EXTREMELY RARE PROTOTYPE MADE - Able Auctions
1974 Martin Sigma Sbg2-9 (I think) What can you tell me about this guitar? What it might be worth? I am not finding much online. I have read that they only made
1974 Martin / Sigma SBG2-9 Electric Guitar (210 of 250 made) | Reverb
1981 Martin Sigma SE-28 Acoustic Flattop w/ Cutaway Natural > Guitars Flattop Electric & Acoustic | Rivington Guitars
MARTIN PROTOTYPE SIGMA ELECTRIC GUITAR CIRCA 1979-1980. THIS IS AN EXTREMELY RARE PROTOTYPE MADE - Able Auctions
Sigma Electrics 1973/4 | RealMarshall
VintageSilvertones.com - For Sale
Sigma Martin SBG2-9 Electric Guitar + Case / Tokai SG Copy / Ampeg Stud 1973-1974 Natural | Reverb
Martin Sigma electric last... - Delta Blues Vintage Guitars | Facebook
Martin Sigma DT-3 Vintage MIK Korea Acoustic Guitar 1970's Figured Chestnut | eBay
Sigma 00M-1SL-SB Acoustic Left Handed, Sunburst at Gear4music
Martin Sigma electric last... - Delta Blues Vintage Guitars | Facebook
Martin Sigma SG SBG2 1972/1974 Vintage and original | Reverb Austria
Sigma Dreadnought DM-3 Guitar by C.F. Martin & Co. | eBay
Sigma by Martin E-18 (Serial # 30) - YouTube
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Guitar Blog: Sigma by C.F. Martin Tele-style guitar (made by Tokai)
