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Martin Sigma Dreadnaught DM-12-4 Acoustic 12-String Guitar - $600 (Winchester)
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Body: Dreadnought style with a round soundhole; laminated Sitka spruce top for bright, clear tone; laminated mahogany back and sides for warmth and durability.
Neck: Mahogany, low-profile shape with an adjustable truss rod; 14 frets clear of the body (20 total frets); ebonized (blackened) rosewood or natural rosewood fingerboard with pearl/pearloid dot inlays.
Bridge: Rosewood (fixed, non-adjustable in most cases).
Hardware: 6-per-side chrome enclosed tuners; black pickguard; white multi-ply binding on the body.
Scale Length: Approximately 25.4" (standard for Martins/Sigmas).
Finish: Gloss lacquer.
Other Features: Designed for balanced 12-string chime with good volume.
Inputting the serial number and model in GROK yields the following comments:
"Condition: Your "perfect condition" description (no damage, low wear) could push it toward the higher end—buyers pay a premium for well-maintained vintages.
Market Trends: Sigma 12-strings are niche but sought after for their vintage vibe and affordability compared to Martin 12-strings (which can cost $2,000+ used). Demand is steady among collectors and players, but not explosive, so prices haven't skyrocketed.
Location and Platform: Online marketplaces like Reverb or eBay often yield $350–$450 after fees/shipping. Local sales (e.g., Craigslist, Facebook Marketplace) might fetch $400–$500 if you highlight the condition and case. International sales could vary due to currency/shipping.
I will ship with buyer paying for shipping and insurance.