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3139 D hook silhouette
Hook ReferenceO. Mustad & Son Hooks › Mustad Hooks – 3139 D

Mustad 3139 D

3139 Dc. 1950-1970
Straight Ring EyeKirby Bend with OffsetStandard ShankStandard WireGold Plated FinishSuperior Point

Record summary

The Mustad 3139 D represents a classic example of mid-20th century Kirby hook design with gold-plated finish P. This ringed hook features the traditional offset point that defines the Kirby bend family, originally developed by London needle maker Charles Kirby in the 17th century V.

Packaged in Mustad’s distinctive bright orange box with decorative border and Key Brand logo, this specimen dates to approximately 1950-1970 based on the Oslo address and packaging style E. Size 11 represents one of the ‘odd’ sizes that were gradually discontinued as manufacturers standardized their offerings V.

The gold plating distinguishes this from the more common bronzed versions, making it particularly attractive to collectors of vintage Mustad hooks. The ‘D’ suffix likely denotes the gold finish variant within the 3139 series I.

Mustad 3139 D Box and Label Size 11
Mustad 3139 D Box and Label Size 11

Photographic record

4 cataloged imagesSelect any record to load it above.

4 images shown

Mustad 3139 D Box and Label Size 11 Mustad 3139 D Box and Label Size 11 Open original
Mustad 3139 D Hook Point Size 11 Mustad 3139 D Hook Point Size 11 Open original
Mustad 3139 D Hook Size 11 Mustad 3139 D Hook Size 11 Open original
Mustad 3139 D Hooks Size 11 Mustad 3139 D Hooks Size 11 Open original

Technical profile

Mustad-Best Kirby Hook - Ringed Goldplated - Made in Norway

Eye
Ball Eye, Straight / Inline
Wire
Extra-Heavy (2X+), Round
Shank
1X Long — Plain
Bend
Kirby (offset), Narrow gap, Offset / kirbed Classic Kirby offset with point bent to the left when viewed from above P. The offset angle is moderate and consistent with traditional Kirby geometry E.
Point
Superior (near-straight inner taper) Standard cut barb with moderate angle and depth, positioned close to the point P.
Finish
Gold-Plated — Confirmed (stated on packaging) Bright gold plating with warm tone throughout P. Finish appears uniform with no visible wear or tarnishing on specimen P.
Both hooks exhibit bright gold finish with no tarnishing or corrosion. Box shows minor edge wear but graphics remain vivid and intact.

The superior point features a near-straight inner taper that creates a sharp, penetrating tip while maintaining structural strength P. The gold plating serves both aesthetic and functional purposes, providing corrosion resistance and flash attraction that can trigger strikes from fish V. The kirby offset theoretically prevents the hook from lying flat in a fish’s mouth, though modern testing suggests the advantage is minimal compared to straight hooks I.

Size & scale lab

Selected size (unspecified)
Physical specimen
Overall Length
16.5 mm E
Shank Length
9.5 mm E
Gap Width
4.5 mm E
Bend Depth
5.5 mm E
Confidence
P Physical specimen

Grid-derived from photograph (1/10" grid)

Calibrated SVG True-scale preview

Historical context

mustad

O. Mustad & Son was established in Gjovik, Norway in 1832 by Ole Mustad, transforming from a small needle and pin factory into the world’s largest fishhook manufacturer. By the early 20th century, Mustad had established global distribution networks and became synonymous with quality fishhooks worldwide.

The company’s ‘Key Brand’ trademark became one of the most recognized symbols in fishing tackle, representing consistent quality and innovative manufacturing techniques. Mustad’s industrial scale production and scientific approach to hook metallurgy set new standards for the entire industry.

Series History

The 3139 series represents Mustad’s classic Kirby bend hooks, introduced as part of their comprehensive catalog of traditional English hook patterns adapted for industrial production. The series was offered in multiple finish variants, with the ‘D’ suffix indicating the gold-plated version.

This series maintained the traditional Kirby offset geometry while benefiting from Mustad’s precision manufacturing and quality control. The gold-plated variant was positioned as a premium option for anglers seeking both functionality and aesthetic appeal in their tackle.

Era and Packaging Dating

Bright orange paper box with decorative border pattern and Key Brand logo represents classic mid-century Mustad packaging design. Oslo address (rather than Gjovik) indicates earlier production period. No barcode confirms pre-1974 manufacture. Typography and box construction consistent with 1950s-1970s era.

The Lost Art of Odd Sizes

Size 11 hooks represent a fascinating aspect of fishing history when manufacturers offered granular size progressions to match specific bait presentations. Charles Kirby's original 17th-century design was so effective that it remained virtually unchanged for over 300 years, with Mustad's version differing only in manufacturing precision and materials science advances.

Cross-reference & comparisons

Bait Fishing

Primary Application

Originally designed for traditional bait fishing with natural baits like worms, maggots, and bread paste. The gold plating provided flash attraction and corrosion resistance P. The kirby offset was believed to improve hooking by preventing the hook from lying flat against the fish’s mouth V. Also suitable for traditional wet flies where the gold finish adds sparkle to patterns like March Brown and Partridge and Orange I.

Classic Fly Patterns

March Brown, Partridge and Orange, traditional wet fly patterns requiring gold finish

Modern Equivalents

HookMatch QualityNotes
Mustad 3138 Excellent Direct descendant with same Kirby geometry, available in even sizes only
Gamakatsu Octopus Good Modern offset bait hook with similar application range

Collector notes

Strong historical significance as a classic Kirby pattern with rare size 11 and gold finish, but relatively common Mustad production limits premium value.

Reference value $15 – $35 USD estimate
Packaging condition Very Good — light wear, fully legible Recorded specimen
Packaging format MST-BOX-50s-01 Catalog code

Positive factors include the historical significance of the Kirby bend design, the increasingly rare size 11 designation, and the attractive gold-plated finish that sets it apart from standard bronzed versions. The excellent condition of both hooks and packaging adds considerable appeal for collectors.

Limiting factors center on Mustad’s large-scale production, which means these hooks were manufactured in substantial quantities despite the discontinuation of odd sizes. The brand’s continued operation also means similar patterns remain available, reducing scarcity value compared to defunct manufacturers.

Packaging

Small rectangular cardboard box with bright orange/red paper covering. Decorative border of repeated snowflake or floral motifs around perimeter. Central Key Brand logo with company text 'O. MUSTAD & SON Manufacturers Oslo - Norway'. Model specification 'Qual. 3139 D Superior' and product description 'Mustad-Best Kirby Hook Ringed Goldplated'. Quantity marked as '100 No. 11'. Bottom states 'Made in Norway'.

Market Value Notes

Price driven primarily by packaging condition and size 11 rarity. Gold finish commands premium over bronzed variants. Complete boxes in excellent condition bring top values.

Where to Find

Vintage tackle shows, eBay auctions, estate sales, specialized fishing collectible dealers

Collector's Identification Tips

Key identifiers include the size 11 marking (discontinued odd size), bright orange Mustad box with decorative border, Oslo address rather than Gjovik, and gold-plated finish with ‘D’ suffix designation. Verify the kirby offset and superior point geometry.

Preservation

Storage and Preservation

Store in a cool, dry environment to prevent tarnishing of the gold plating. The original orange box provides excellent protection and should be retained for maximum collectible value. Avoid handling the hooks directly – oils from fingers can cause discoloration over time.

If removing hooks from the box for examination, use fine-tip tweezers to prevent scratching the gold finish. The cardboard packaging is susceptible to fading, so store away from direct sunlight and fluorescent lighting.

Size Note

The Significance of Size 11

Size 11 represents one of fishing’s ‘lost sizes’ – odd-numbered designations that were gradually eliminated as manufacturers streamlined their offerings in the latter half of the 20th century. These intermediate sizes allowed anglers to fine-tune their presentations with greater precision than the standard even-numbered progression.

Finding a size 11 hook today immediately identifies it as vintage production, typically pre-1980. The elimination of odd sizes was driven more by inventory management than fishing performance, making these specimens important historical artifacts of a more granular era in tackle manufacturing.

Confidence notation key

P Photographically verified — Directly observable in the photograph(s) on this page.
V Verified by documentation — Confirmed by manufacturer catalog, spec sheet, or published reference.
I Inferred — A logical deduction from observable or documented evidence, not directly stated.
E Estimated — An approximation based on visual comparison, proportional analysis, or limited data.
S Speculative — A reasoned hypothesis that cannot be confirmed from available evidence.

Claims with no notation are confirmed by multiple independent sources. All photographs on garrenwood.com are taken on a measurement grid where each square equals 1/10 inch (0.1″ / 2.54 mm).