1934 Martin 000-42 (12-Fret, Brazilian Rosewood)

The 1934 Martin 000-42 is the kind of guitar that makes experienced collectors stop and listen. A 12-fret, 000-size body built with Brazilian rosewood back and sides, an Adirondack spruce top, and the ornate Style 42 appointments including snowflake inlays and abalone trim, this is one of the rarest and most beautiful acoustic guitars from the golden age of American guitar making. Fewer than a dozen were built in 1934, and those that survive are considered among the finest acoustic instruments ever created.

Understanding the Model Designation

Martin guitar names follow a logical system: the prefix indicates body size, and the suffix indicates the style (trim level and materials).

000: This is Martin's auditorium-size body, measuring approximately 15 inches wide at the lower bout. It is larger than the 00 but smaller than the dreadnought (D) body. The 000 is prized for its balanced tonal response, with strong midrange, articulate trebles, and controlled bass.

42: Style 42 is near the top of Martin's ornamentation hierarchy. It features:

• Abalone pearl border ("rope" pattern) around the top, back, and soundhole

• Snowflake pearl fingerboard inlays

• Abalone rosette with multiple wood purfling rings

• Bound headstock with pearl Martin logo

• Ivory (or later, bone) bridge pins and nut

• Multiple layers of binding on body and neck

12-Fret: The neck joins the body at the 12th fret, as opposed to the 14-fret joint that Martin began transitioning to in 1934. The 12-fret design places the bridge closer to the center of the lower bout, which many players and builders believe produces a warmer, more resonant tone.

The Transition Year

1934 is a pivotal year in Martin history. It was during this period that Martin was transitioning from the traditional 12-fret neck joint to the newer 14-fret design across its product line. A 1934 000-42 with a 12-fret neck represents the end of an era, the last year this specific combination was regularly available.

This transition matters because many acoustic guitar connoisseurs consider the 12-fret design tonally superior to the 14-fret version. The physics support this view: with the bridge positioned closer to the center of the soundboard, the top vibrates more freely and produces a fuller, more complex tone. The 14-fret design sacrificed some tonal richness for greater upper-fret access.

Materials: Brazilian Rosewood

The back and sides of the 1934 000-42 are constructed from Brazilian rosewood (Dalbergia nigra), now one of the most regulated tonewoods in the world. Brazilian rosewood has been listed under CITES Appendix I since 1992, effectively banning international commercial trade in the species.

Why Brazilian Rosewood Matters:

• Tone: Brazilian rosewood produces a complex overtone series with sparkling highs, rich midrange, and deep, focused bass. Many luthiers and players consider it the finest tonewood for acoustic guitar backs and sides

• Appearance: The wood displays dramatic grain patterns with colors ranging from dark chocolate to violet-brown, often with contrasting sapwood streaks

• Scarcity: No new Brazilian rosewood is available for guitar building. Every Brazilian rosewood guitar was made from existing stock, and that stock is finite

• Legal Complexity: Instruments containing pre-ban Brazilian rosewood can be sold domestically but face restrictions on international transport. Documentation of the guitar's pre-ban status is important for buyers

Specifications:

Scalloped X-Bracing

Pre-war Martins are famous for their scalloped X-bracing pattern. The top braces are carved (scalloped) to reduce their mass while maintaining structural support. This allows the top to vibrate more freely, producing greater volume, sustain, and tonal complexity.

Martin stopped scalloping braces in 1944 due to concerns about structural durability (particularly with the increasing popularity of heavier steel strings). The pre-war scalloped bracing is a key factor in why these guitars sound different from post-war examples, and it is a major driver of collector demand.

Condition Assessment

Condition Grades:

Critical Inspection Points:

• Top Cracks: Spruce tops can develop cracks, especially along the grain. Professional repairs are common and acceptable if done well, but unrepaired cracks are concerning

• Neck Condition: Has the neck been reset? A well-done neck reset is standard maintenance for guitars of this age and does not dramatically reduce value

• Bracing: The original scalloped X-bracing should be intact. Rebraced guitars lose significant value

• Bridge Plate: The internal bridge plate should show appropriate wear but no excessive string-pull damage

• Finish: Original nitrocellulose lacquer develops checking and wear over 90+ years. Refinished guitars bring 40-60% less than original-finish examples

• Hardware: Original tuners, bridge pins, and nut material should be verified

• Pearl Inlays: The abalone border and snowflake inlays should be intact. Missing or replaced inlay pieces reduce value

Sound Characteristics

Players and collectors describe the 1934 000-42 tone as:

• Balanced: The 000 body produces even response across all frequencies without the bass-heavy tendency of dreadnoughts

• Complex: Brazilian rosewood contributes rich harmonic overtones that create depth and dimension

• Responsive: The scalloped bracing and aged spruce top respond sensitively to touch, rewarding dynamic playing

• Projecting: Despite being smaller than a dreadnought, the 000-42 projects well in acoustic settings

• Sweet: The 12-fret neck position gives the tone a sweetness and warmth that fingerstyle players particularly value

Ninety-plus years of aging have allowed the wood fibers to dry and crystallize, a process that many builders and players believe improves tonal response. A well-maintained pre-war Martin has had decades to "open up" sonically.

Market Position

The 1934 Martin 000-42 occupies the upper echelon of the acoustic guitar market. Very few change hands in any given year, and each sale is an event in the vintage guitar world.

Comparable Market References:

The 000-42 is less expensive than the legendary D-45 and OM-45 but shares much of the same construction quality and materials. For collectors who want a pre-war Martin with Style 42 appointments at a (relatively) accessible price, the 000-42 is one of the best options available.

Provenance and Documentation

Martin maintains factory records that can sometimes help authenticate and date specific instruments. Serial numbers, body stamps, and construction details all contribute to verification.

Documented ownership history significantly affects value. A 000-42 with known provenance tracing back to its original purchase, or with a documented history of ownership by notable musicians, will command premium prices.

Why It Matters

The 1934 Martin 000-42 represents American craft at its absolute peak. Built during the Great Depression by skilled workers using materials that are no longer available, each surviving example is simultaneously a functional musical instrument, a work of decorative art, and a historical artifact. The combination of 12-fret design, Brazilian rosewood, Adirondack spruce, scalloped bracing, and Style 42 ornamentation creates something that cannot be replicated, no matter how much money you spend.

For collectors and players, these guitars offer an experience that transcends the market. Holding a 1934 000-42, feeling its lightweight body resonate under your hands, and hearing the complex overtones that ninety years of aging have produced is to understand why people dedicate their lives to these instruments.

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