Martin D Biosphere III, Ebony Fingerboard, Robert Goetzel Art

*This instrument was on display at the 2026 Winter NAMM show. It has been hand-inspected with any significant playwear listed below in detail. The instrument includes its full factory warranty and original case. We'll complete a full professional setup before shipping.*

Celebrate Earth Day with the D Biosphere® III, the latest chapter in Martin's commitment to sustainability and environmental awareness. Crafted entirely from FSC®-certified woods, this guitar is more than an instrument—it's a call to action. At its heart is a captivating work of art by Robert Goetzl, depicting a tender moment between a polar bear mother and her cub, set against a backdrop of icy blues and a warm, glowing sky. It’s a scene of beauty and fragility, echoing the uncertain future these majestic animals face.

This model is a tribute to Polar Bears International®, a nonprofit dedicated to the conservation of polar bears and the Arctic sea ice they depend on. C. F. Martin & Co.® has made a generous donation to support its vital work, helping to address both short- and long-term threats to these incredible animals and ensure they continue to roam the sea ice for generations to come.

Featuring a Dreadnought body made of solid sapele back and sides and a solid Sitka spruce top, the D Biosphere III produces a rich, resonant tone that mirrors the voice of our planet—bold, clear, and deeply moving. Thoughtful touches like European flamed maple binding and sapele fingerboard inlay make it as beautiful to play as it is to behold. Every strum of this guitar reminds us of the deep connection of all life and the importance of preserving it for generations to come. Join Martin in raising awareness and protecting our planet, because nature’s song deserves a stage. 

Note: After close inspection, this instrument is free of any major wear, marks and/or blemishes. (See pics)

Specifications:

• Serial #: 2961333
• Top Material: Sitka Spruce
• Finish Top: Satin
• Top Color: Custom Ink
• Top Inlay Material: Black Fiber Stripe
• Top Detail: FSC® Certified Wood
• Binding: FSC® Certified European Flamed Maple
• Bridge Material: FSC® Certified Ebony
• Bridge Style: Modern Straightline - Drop in Saddle
• Bridge String Spacing: 2 5/32"
• Bridge Pin Material: Bone
• Bridge Pin Dots: None
• Pickguard: None
• Pickguard Inlay: None
• Rosette: None
• Saddle: Compensated Bone
• Saddle Radius: 16"
• Body Size: D-14 Fret
• Construction: Simple Dovetail Neck Joint
• Back Material: Sapele
• Side Material: Sapele
• Back and Side Finish: Satin
• Back and Sides Color: Natural
• Back Detail: FSC® Certified Wood
• Side Detail: FSC® Certified Wood
• Back Purfling/Strip: None
• Back Inlay Material: None
• Side Inlay Material: None
• Bracing Pattern: Forward Shifted X-Brace
• Brace Shape: GE-Scalloped
• Brace Material: FSC® Certified European Spruce
• Brace Size: 5/16"
• Heelcap: None
• Endpiece: None
• Endpiece Inlay: None
• Neck Shape: Modified Low Oval
• Neck Taper: High-Performance Taper
• Neck Material: FSC® Certified Select Mahogany
• Neck Color: Natural
• Finish Neck: Satin
• Scale Length: 25.4"
• Number of Frets Total: 20
• Neck Joins Body At: 14th Fret
• Fingerboard Material: FSC® Certified Ebony
• Fingerboard Width at 12th Fret: 2 1/8''
• Fingerboard Width at Nut: 1 3/4''
• Fingerboard Inlay Style: Dots
• Fingerboard Inlay Material: FSC® Certified Sapele
• Fingerboard Binding Material: None
• Side Dots: Aluminum
• Headstock Shape: Solid with Square Taper
• Headplate Material: FSC® Certified Ebony
• Headplate Logo Style: Script Authentic 1933 Overlay
• Headplate Binding Material: None
• Tuning Machines: Nickel Open Gear
• Knob: Butterbean
• Nut Material: Bone
• Case: Softshell
• Label: Multiple Paper Labels
• Electronics: None
• Pleked: true

We are proud to include a full professional setup to factory spec before delivering your new Martin Guitar. Our world-class techs will dial in your guitar to make sure the playability is maximized on your new Martin!

Empire Music is one of Martin's Worldwide Custom Shop Expert Dealers.