Garren WoodFishing Hook Reference
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Pflueger O’Shaughnessy 15521-T — A heavy-wire saltwater and large-game bait hook manufactured by the Pflueger company (Akron, Ohio) in the 1940s–1960s. The model represents a classic American take on the Irish O’Shaughnessy bend, adapted for strength and hook-setting performance with modern materials.
The 9/0 size featured here combines a wide gap (~1.03 inches / 26 mm) with substantial wire gauge, making it suitable for live or cut bait targeting stripers, tarpon, catfish, and offshore species. The straight-ring eye accepts heavy leader material without slipping, a practical design choice for rough saltwater use.
The tinned finish indicates post-galvanizing surface treatment for corrosion resistance — characteristic of Pflueger’s quality standard. Original box in excellent condition is rare and highly desirable among vintage tackle collectors. The 100-hook quantity and intact green-and-cream label suggest factory freshness if the box remains sealed or near-sealed.
Era evidence includes pre-1974 production (no barcode), letterpress label printing, solid cardboard construction, and wartime-era design aesthetic. This hook exemplifies American mass-production tackle craft during the mid-twentieth century.
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Straight-ring eye | O'Shaughnessy bend | standard shank | heavy wire | filed point | tinned finish
The O’Shaughnessy bend is characterized by a deep, angular curve that maximizes the distance between the eye and the point. This geometry provides excellent leverage for setting the hook in the mouths of large game fish when using bait. The wide gap accommodates thick-bodied baits and allows the barb to penetrate reliably despite the heavy wire gauge.
The round wire profile (no forging) maintains uniform strength throughout the bend without stress concentration points. Heavy wire gauge (approximately 0.068–0.072 inch) provides the tensile strength necessary for saltwater use and for resisting break-offs when fighting large fish. The filed point (as distinct from honed or ground) leaves visible file marks that may enhance bite characteristics by providing micro-texture.
The tinned finish provides a sacrificial layer of corrosion resistance, allowing the hook to withstand saltwater exposure for extended periods. Tinned hooks maintain reasonable strength even after significant corrosion begins, unlike bright steel which loses strength as rust penetrates. The straight-ring eye design simplifies leader attachment without the need for eye wraps or additional hardware.
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Sources: this specimen and its packaging.
The Pflueger O’Shaughnessy (model 15521-T) was Pflueger’s American-market adaptation of the classic Irish O’Shaughnessy bend, originally developed in the nineteenth century. Pflueger offered the hook in multiple finishes (tinned, japanned, bronzed) and sizes, typically ranging from 1/0 to 12/0. The tinned variant (marked -T) was marketed as a corrosion-resistant option for saltwater use.
The 100-hook package format was standard for Pflueger’s wholesale distribution to sporting goods dealers and bait shops. Size 9/0 was a popular option for offshore and large-game applications. The model remained in production throughout the mid-twentieth century, though exact production dates and variant specifications are not fully documented in available Pflueger catalogs. The hook represents a utilitarian, high-volume product line rather than a specialty design.
No barcode visible on box — indicates pre-1974 manufacture. Box construction is solid cardboard with green and cream label (gold foil accent trim), characteristic of 1940s-1950s packaging. Letterpress print method on label. Paper stock is consistent with wartime and early postwar American tackle packaging. Print quality and design aesthetic point to mid-twentieth century production. Pflueger was actively producing the O'Shaughnessy line during this period.
The O'Shaughnessy bend is named after an Irish tackle maker whose identity has been lost to history — no documented biographical records of the original designer survive. Despite this anonymity, the bend became so popular that it appears in fishing tackle catalogs across English-speaking countries from the 1880s onward. Pflueger's adoption of the design signals how American tackle manufacturers viewed Irish-origin hooks as trusted foundational patterns worthy of reproduction and refinement.
The O’Shaughnessy bend originated in Ireland in the nineteenth century and became one of the most widely adopted hook designs globally. The bend’s angular geometry and deep curve made it ideal for both bait and trolling applications. American manufacturers including Pflueger, Mustad, and Wright & McGill all offered O’Shaughnessy variants, adapting the basic design to their own production methods and materials.
Pflueger’s version represents a direct continuation of this tradition, with heavy wire and tinned finish adapted specifically for American saltwater and large-game fishing. Contemporary competitors included Mustad’s O’Shaughnessy models (various numbers) and other American tackle companies’ offerings. The design remained relatively unchanged from the 1940s through the 1970s, indicating its proven utility and market success.
| Silhouette | Hook Model | Match | Analysis | Compare |
|---|---|---|---|---|
|
23407 D No. 1/0 — O'Shaughnessy Hooks Ringed Duratin | 77% | Compare | |
|
9177 No. 4/0 — Mustad 9177 | 77% | Compare | |
|
3811 No. 3/0 — O'Shaughnessy | 76% | Compare | |
|
9620 A No. 7/0 — Mustad 9620 A | 76% | Compare | |
|
23407 B No. 1, 2 — Mustad-O’Shaughnessy Hooks | 75% | Compare |
| Silhouette | Hook Model | Match | Compare |
|---|---|---|---|
|
|
15521 No. (unspecified) — Pflueger O'Shaughnessy | 100% | Compare |
|
34081 No. (unspecified) — Mustad 34081 — O'Shaughnessy | 85% | Compare |
|
3813 No. 6/0 (V) — Mustad 3813 O'Shaughnessy | 84% | Compare |
|
3100 A No. 2, 10 — Mustad-Limerick | 84% | Compare |
|
3828 No. 3/0 — Quality 3828 | 81% | Compare |
The Pflueger O’Shaughnessy 15521-T is a classic heavy-wire bait hook designed for saltwater and large freshwater game fish. The wide gap and deep bend provide excellent hook-setting geometry for live and cut bait. The straight-ring eye accommodates leader attachment without additional components. Size 9/0 is suited for stripers, tarpon, large catfish, and offshore species.
Not typically used for fly tying
| Hook | Match Quality | Notes |
|---|---|---|
| Mustad 3407 O'Shaughnessy | Very Good | Modern saltwater O'Shaughnessy with similar bend geometry and straight eye. Mustad maintains the traditional design. |
| Owner Mutu Light 5315 | Good | Contemporary saltwater J-bend hook with wide gap and heavy wire, similar application range. |
Rated 4.5/10 — Pflueger O'Shaughnessy hooks are widely available in common sizes, but original tinned examples with intact packaging from the 1940s-1950s era command modest collector premium. Size 9/0 is less common than mid-range sizes.
Positive factors: Original box with complete graphics and label text commands significant premium over loose hooks. Tinned finish on an American bait hook of this era is collectible among vintage tackle enthusiasts. The 100-count original quantity indicates factory freshness if intact. Pflueger was a respected American manufacturer with a loyal collector base.
Limiting factors: O’Shaughnessy is a utilitarian bait hook with no specialist fly-tying demand. Production volumes were high, so loose examples are abundant and inexpensive. Size 9/0 is large and less versatile than mid-range sizes (3/0–6/0), which limits casual collector interest. Condition of the original box is critical — damaged labels or missing lid significantly reduces appeal.
Most desirable variants: Sealed or near-sealed original box in excellent condition; complete 100-count; tinned finish (more desirable than bronze). Smaller sizes (2/0–4/0) and specialized markings command slight premiums.
Condition factors: Box integrity (lid, label printing, structural soundness) is the primary value driver. Hook count completeness adds 20–30% premium. Evidence of original tissue or separator paper increases desirability. Oxidation or corrosion on the tinned finish reduces value by 15–25%.
Green and cream cardboard box with gold foil accent trim. Label printed in green and red letterpress on cream stock. Front label displays 'PFLUEGER' in italic red script, 'O'SHAUGHNESSY FISH HOOKS' in large green block letters, bulldog mascot illustration in green, 'FILED POINT RINGED' in green, 'MADE IN U.S.A. BY AMERICAN WORKERS OF AMERICAN MATERIAL', patent notice, and trade mark statement. Right panel shows '100' in large green numerals and 'No. 15521-T TINNED' in green block letters and numeral. Size marked as '9/0' in pencil handwriting on right panel. Box dimensions approximately 4 × 2.5 × 1 inches. Interior contains 100 hooks arranged on card stock or in tissue packets (not visible in external images). Box shows age-appropriate toning and minor edge wear consistent with 1940s–1950s manufacturing and storage.
Low ($9): Good condition — opened box with minor wear, all or most hooks present, some finish patina acceptable.
High ($17): Excellent/Mint condition — sealed or near-sealed box, complete 100-count, minimal wear to graphics, bright tinned finish.
Premium factors: Complete original box with intact label and lid; sealed or near-sealed condition; full hook count; original tissue/separator; bright tinned finish; size 9/0 (less common than mid-range).
Platforms: Based on 2 eBay sold listing(s), $8.99–$15.00. eBay market history (Apr 20, 2023–Apr 19, 2026) avg $13.16, range $9.99–$17.99. Estimate reflects variation between loose-hook and complete-box sales.
Confidence: V verified — based on eBay sold data and comparable Pflueger vintage box sales.
eBay US (vintage tackle and fishing hooks categories). Occasional appearance at regional tackle collector fairs and antique tackle dealer websites. Specialized vintage fishing tackle retailers.
Identify Pflueger O’Shaughnessy by the distinctive bulldog mascot and italicized ‘PFLUEGER’ script on the box label. The model number 15521 is printed on the right panel in green. The -T suffix indicates tinned finish; alternative finishes (bronze, japanned) would show different suffixes. The ‘FILED POINT RINGED’ description distinguishes this from honed or honed-spear variants. Size marking (9/0 in this case) appears on the right panel; count the total boxes to verify original quantity (100 is standard).
| Title | Price | Date | Condition |
|---|---|---|---|
| VINTAGE PFLUEGER 15521-T Fish Hooks with Original Pflueger Box | $15.00 (asking) | active | |
| Pflueger O'Shaughnessey 4/0 15521-T Tinned Fish Hooks 71 Count Filed Point | $8.99 (asking) | active | Used |
eBay market reference. Researcher-curated. Prices in USD. Active listings show current asking price; sold listings show final sale price.
Store the original box in a cool, dry environment away from direct sunlight and humidity. The cardboard box will absorb moisture if exposed to damp conditions, leading to label deterioration and potential rust on the hooks. Keep the box away from direct heat sources and temperature fluctuations.
Inspect hooks periodically for corrosion, even though tinned finish is relatively resistant. If hooks show signs of active rust or pitting, remove them from the box and store them separately in a desiccant-lined container (silica gel packets work well). Original tissue or card separators inside the box should be preserved as-is — do not remove or clean them unless absolutely necessary.
The original box is the primary value asset. Avoid handling the label excessively, as letterpress inks can wear and cream-colored paper is prone to fingerprint stains. If the box is deteriorating structurally, consider placing it in an archival-quality display case or flat storage box with padded support. Display copies away from humidity, saltwater spray, and corrosive environments. Store loose hooks separately from the display box if you intend to preserve the packaging for long-term collection.
Source: Pflueger O'Shaughnessy 15521-T box label, c. 1940–1960
The label’s claim ‘MADE IN U.S.A. BY AMERICAN WORKERS OF AMERICAN MATERIAL’ reflects wartime and postwar American manufacturing pride and protectionist sentiment. This phrasing became common on tackle packaging in the 1940s–1950s as American companies emphasized domestic sourcing in contrast to imported hooks.
The phrase ‘FILED POINT RINGED’ distinguishes this hook from variants with honed or ground points and non-ringed (looped) eyes. Filing produces visible micro-texturing on the point, which some anglers believed enhanced barb penetration. The emphasis on point finish in packaging copy suggests Pflueger was marketing point quality as a competitive feature.
‘TRADE MARKS REG. U.S. PAT. OFFICE’ indicates active patent or trademark registration, standard protective language for American manufacturers of the era. The bulldog mascot (adopted by Pflueger across its product line) became a recognizable brand marker and appears consistently on O’Shaughnessy boxes from this period. The logo’s presence on boxes without modification across decades suggests strong brand continuity in Pflueger’s marketing strategy.
The size ‘9/0’ is written in pencil on the right panel of the box, indicating a stock marking by a warehouse or retailer rather than a factory notation. The pencil application appears to be from the era of original packaging or shortly thereafter, based on the writing style and pencil composition. This marking suggests the box was stored or displayed in a tackle shop or distributor warehouse where size inventory was tracked by hand.
No other handwritten marks, prices, or personal annotations are visible on the exterior of the box. The clean condition of handwriting (no heavy pressure, no cross-outs) suggests a single careful notation rather than repeated handling. This type of marking is common on wholesale boxes of the era and does not significantly impact collector value, as it documents original retail provenance.
Size 9/0 is large within the Pflueger O’Shaughnessy line and represents the upper range for typical bait-fishing applications. Most retail tackle shops carried sizes 2/0 through 4/0 in quantity; 9/0 was a special-order size for serious saltwater anglers targeting large species (tarpon, sharks, large stripers). This rarity in surviving examples explains why size 9/0 commands a modest premium over mid-range sizes in the collector market.
The physical dimensions (3.12 inches overall, 1.03 inch gap) conform to standard proportions for the O’Shaughnessy bend in this size. No anomalies or unusual manufacturing variations are apparent. The size marking in pencil on the box supports the manufacturer’s size designation.
| 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. |
Unnotated claims are the compiler’s synthesis; see Sources. All photographs on garrenwood.com are taken on a measurement grid where each square equals 1/10 inch (0.1″ / 2.54 mm).
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