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Just Guitars Australia - Martin-Sigma E-18, circa 1981
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Sigma Martin SBG2-9 Electric Guitar + Case / Tokai SG Copy / Ampeg Stud 1973-1974 Natural | Reverb
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Martin X Series 00-X2E Grand Concert Style Acoustic Electric Guitar — Andy Babiuk's Fab Gear
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Sigma (Martin) 12 string guitar 1979 with original hardshell case Original Owner | eBay
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Just Guitars Australia - Martin-Sigma E-18, circa 1981
Martin 000-X2e Acoustic Electric Guitar with Gig Bag - Sims Music
Sigma Martin SBG2-9 Electric Guitar + Case / Tokai SG Copy / Ampeg Stud 1973-1974 Natural | Reverb
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Martin Sigma Prototype Neck Thru Electric Guitar RARE | Reverb
Vintage Sigma DM12-5 12-String Dreadnought Acoustic Electric Guitar in Natural | Cream City Music
Martin Sigma SG 1974 Natural | Reverb Canada | Sigma, Martin, Guitar
1974 Martin / Sigma SBG2-9 Electric Guitar (210 of 250 made) | Reverb
