Martin Custom Shop 45 Style OM Adirondack/Cocobolo w/case

Serial: 3097579

The Martin Custom Shop 45 Style OM Adirondack/Cocobolo is an individually configured Orchestra Model that combines premium tonewoods, Golden Era construction, and the elaborate pearl appointments associated with Martin's historic Style 45 instruments. Specially configured for Tone Shop Guitars, this guitar features a premium Grade 8 Adirondack spruce top, hand-selected cocobolo back and sides, and hand-shaped Golden Era scalloped Adirondack spruce bracing. Its extensive select abalone appointments include top, back, side, and endpiece pearl inlays, a Style 45 rosette, and traditional Style 45 hexagon fingerboard inlays. A premium cocobolo headplate with an inlaid C.F. Martin block logo, gold Grover StaTite tuning machines, and a high-gloss finish complete this distinctive Custom Shop instrument.

The premium Grade 8 Adirondack spruce top provides the foundation for the guitar's acoustic response. Adirondack spruce is valued for its strength, dynamic headroom, and ability to maintain clarity across a wide range of playing dynamics. Its responsive character makes it particularly well suited to the Orchestra Model platform, where balance, articulation, and sensitivity are essential. The top is supported by 1/4" Golden Era scalloped X-bracing, crafted from Adirondack spruce and individually hand-shaped to enhance the soundboard's movement. This construction encourages a responsive acoustic voice with strong note separation, clear projection, and a broad dynamic range. The combination of premium Adirondack spruce and Golden Era bracing makes this guitar particularly appealing for fingerstyle playing, intricate chord voicings, and articulate flatpicking.

The back and sides are crafted from premium cocobolo selected specifically for this Tone Shop Guitars Custom Shop build. Cocobolo is a dense, highly figured tonewood known for its rich harmonic complexity, strong bass response, and clear, ringing trebles. Its tonal characteristics complement the articulate Adirondack spruce top, producing a broad frequency response with substantial sustain and detailed overtones. The two-piece cocobolo back displays the wood's distinctive natural grain patterns and color variations, giving this instrument an individual appearance. Traditional spruce back bracing supports the body, while Style 45 mosaic back purfling and extensive select abalone inlays emphasize the guitar's premium construction. The high-gloss finish highlights the natural beauty of the cocobolo, while antique white binding provides a refined contrast against the richly colored wood.

The genuine mahogany neck features Martin's Golden Era Modified Low Oval profile with a High Performance Taper, combining traditional neck shaping with a comfortable, streamlined playing feel. Its 1 3/4" nut width provides generous string spacing for fingerstyle techniques, while the 2 5/32" bridge string spacing supports precise control over individual strings. The 25.4" scale length delivers the familiar tension, articulation, and projection associated with Martin's long-scale Orchestra Models. A traditional dovetail neck joint creates a strong acoustic connection between the neck and body, while the adjustable truss rod allows precise neck relief adjustments. The gloss neck finish complements the instrument's elegant appearance, and the long diamond volute adds a traditional structural and visual detail.

The black ebony fingerboard features a 16" radius, 20 frets, and traditional Style 45 hexagon inlays crafted from select abalone. These distinctive markers are among the defining visual elements of Martin's most elaborately appointed acoustic guitars. The fingerboard is bound and features carefully mitered appointments, providing a refined transition between the ebony playing surface and antique white binding. The solid headstock features a premium cocobolo headplate with an inlaid C.F. Martin block logo in select abalone, creating a cohesive connection to the instrument's back and sides. Gold Grover V97-18GA StaTite open-gear tuning machines with vintage-style buttons and an 18:1 gear ratio provide smooth, precise tuning adjustments while complementing the guitar's traditional aesthetic.

The extensive Style 45 pearl work distinguishes this Custom Shop OM from less elaborately appointed instruments. Select abalone perimeter purfling follows the fingerboard profile around the Adirondack spruce top, while additional abalone inlays accent the back, sides, and endpiece. A Style 45 Boltaron rosette with select abalone surrounds the soundhole, creating a coordinated decorative theme throughout the body. Black-and-white Boltaron purfling adds further contrast, while antique white binding frames the guitar's elegant proportions. The aging-toner spruce top provides a warm, vintage-inspired appearance, complemented by a faux tortoise pickguard. The black ebony Golden Era Modern Belly bridge features a compensated bone saddle and bone bridge pins with paua accents, matching the endpin for a cohesive finishing detail.

Built by the Martin Custom Shop in Nazareth, Pennsylvania, this 45 Style OM represents a carefully selected combination of premium materials, traditional acoustic construction, and elaborate decorative craftsmanship. Its Adirondack spruce top, premium cocobolo back and sides, Golden Era scalloped bracing, and genuine mahogany neck provide a responsive tonal foundation, while the extensive abalone appointments establish the unmistakable character of Martin's Style 45 tradition. The guitar is entirely acoustic, without onboard electronics, preserving its traditional construction and natural resonance. A five-ply hardshell case and Martin Custom Shop Credentials Book are included, completing an individually configured instrument that blends historic Martin design with premium tonewoods selected for Tone Shop Guitars.

Highlights

• Tone Shop Guitars Custom Shop 45 Style OM with premium Grade 8 Adirondack spruce top and hand-selected cocobolo back and sides

• Golden Era hand-shaped scalloped 1/4" Adirondack spruce X-bracing with traditional dovetail neck construction

• Extensive select abalone Style 45 pearl appointments around the top, back, sides, endpiece, and rosette

• Black ebony fingerboard with Style 45 hexagon inlays and premium cocobolo headplate with select abalone C.F. Martin block logo

• Genuine mahogany GE Modified Low Oval neck, gold Grover StaTite tuners, five-ply hardshell case, and Custom Shop Credentials Book

Specifications

Body

• Brand: Martin

• Series: Custom Shop

• Model: Custom Shop 45 Style OM Adirondack/Cocobolo

• Body Shape: 000/OM Auditorium

• Body Style: 14-Fret Orchestra Model

• Style Inspiration: OM-45

• Construction: Acoustic

• Top Material: Premium Adirondack Spruce

• Top Grade: Grade 8

• Back Material: Premium Cocobolo

• Side Material: Premium Cocobolo

• Back Construction: Two-Piece

• Top Bracing Material: Adirondack Spruce

• Bracing Pattern: X-Bracing

• Bracing Pattern Number: 6-A OM

• Bracing Style: Golden Era with Hand Shaping

• Bracing Shape: Scalloped

• Bracing Size: 1/4"

• Back Bracing Material: Spruce

• Back Bracing Pattern: 000 14-Fret

• Center Strip: Spruce

• Ribbons: Spanish Cedar

• Body Depth: Standard

• Body Binding: Antique White

• Top Pearl: Select Abalone Perimeter with Fingerboard Profile

• Top Pearl Thickness: 0.064"

• Back Pearl: Select Abalone

• Back Pearl Thickness: 0.047"

• Side Pearl: Select Abalone

• Side Pearl Thickness: 0.047"

• Endpiece Pearl: Select Abalone

• Endpiece Pearl Thickness: 0.047"

• Top Purfling: Black/White/Black Boltaron

• Back Purfling: Style 45 Mosaic

• Back Inlay: Black/White/Black Boltaron

• Side Inlay: Black/White/Black Boltaron

• Endpiece Material: Antique White

• Endpiece Inlay: Black/White/Black Boltaron

• Rosette: Style 45 Boltaron

• Rosette Pearl: Select Abalone

• Rosette Pearl Thickness: 0.064"

• Pickguard: Faux Tortoise, Pattern 83B

• Top Color: Aging Toner

• Body Finish: Gloss

• Cutaway: None

• Orientation: Right-Handed

Neck

• Neck Material: 12/4 Genuine Mahogany

• Neck Profile: Golden Era Modified Low Oval

• Neck Taper: High Performance Taper

• Neck Joint: Traditional Dovetail

• Neck Finish: Gloss

• Neck Stain: Maple

• Truss Rod: Adjustable, 14-Fret

• Fingerboard Material: Black Ebony

• Fingerboard Radius: 16"

• Fingerboard Width at Nut: 1 3/4"

• Fingerboard Width at 12th Fret: 2 1/8"

• Bridge String Spacing: 2 5/32"

• Fingerboard Binding: Yes

• Fingerboard Miter: Yes

• Fingerboard Inlays: Style 45 Hexagon

• Fingerboard Inlay Material: Select Abalone

• Side Dots: Black

• Number of Frets: 20

• Frets Clear of Body: 14

• Fret Wire: Standard

• Scale Length: 25.4"

• Compensated Scale Length: 25.470"

• Nut Material: Bone

• Nut Position: Angled

• Headstock Type: Solid

• Headstock Volute: Long Diamond

• Headstock Ears: Authentic

• Headstock Taper: Square

• Headplate Material: Premium Cocobolo

• Headplate Binding: Yes

• Headplate Inlay: C.F. Martin Block Logo

• Headplate Inlay Material: Select Abalone

• Headplate Purfling: Black/White/Black Boltaron

• Heelcap Material: Antique White

Hardware

• Bridge Material: Black Ebony

• Bridge Style: Golden Era Modern Belly

• Saddle Style: Drop-In

• Saddle Material: Compensated Bone

• Bridge Pins: Bone with Paua

• Endpin: Bone with Paua

• Tuning Machines: Grover V97-18GA StaTite

• Tuner Finish: Gold

• Tuner Gear Ratio: 18:1

• Tuner Buttons: Vintage Style

• Nut Material: Bone

• Strings: Martin Authentic Acoustic Lifespan 2.0

• String Gauge: Light

• Strap Button: None

Electronics

• Electronics: None

• Pickup System: None

• Onboard Preamp: None

• Output Jack: None

Miscellaneous

• Serial Number: 3097579

• Manufacturer: C.F. Martin & Co.

• Build Type: Custom Shop

• Custom Configuration: C25-030699

• Custom Configuration Name: Tone Shop Guitars 45-Style OM Coco

• Style Inspiration: OM-45

• Custom Tonewood Selection: Cocobolo #7

• Top Material: Premium Grade 8 Adirondack Spruce

• Back and Sides: Premium Cocobolo

• Bracing: Golden Era Hand-Shaped Scalloped Adirondack Spruce

• Inlay Style: Style 45

• Inlay Material: Select Abalone

• Number of Strings: 6

• Orientation: Right-Handed

• Country of Origin: United States

• Manufacturing Location: Nazareth, Pennsylvania

• Included Case: Martin Five-Ply Hardshell Case

• Included Documentation: Martin Custom Shop Credentials Book

Why Buy from Tone Shop Guitars?

Tone Shop Guitars is the premier Martin dealer in the Dallas-Fort Worth area — and beyond. Our staff are players and enthusiasts who know these instruments inside and out, and we hand-inspect every guitar before it leaves our doors. When you buy a Martin from us, you’re not just getting a great guitar — you’re getting the expertise, the care, and the follow-through that a purchase like this deserves. Stop by any of our three DFW locations or shop online with confidence. We’re here to help you find the right one.