Original Gibson PAF Pickups: The Complete Authentication, Dating & Value Guide (1957-1962)

Last Updated: May 2026

What Are PAF Pickups and Why Do They Matter?

The Gibson PAF (Patent Applied For) humbucker is the most valuable, most sought-after, and most frequently counterfeited guitar pickup in history. Developed by Gibson engineer Seth Lover and installed in Gibson guitars from 1957 through approximately 1962, original PAF pickups define the benchmark tone that every humbucker manufacturer has attempted to replicate for nearly seven decades. A single verified PAF pickup can be worth more than many complete vintage guitars — making authentication the most critical skill in vintage Gibson evaluation.

What makes original PAFs legendary:

• Hand-Wound Construction: Each PAF was wound by hand with guide mechanisms creating subtle coil irregularities — producing complex, organic harmonic content and dynamic response impossible to replicate through machine winding

• Rough Sand-Cast Base Plates: Original PAFs feature rough, unfinished sand-cast base plates — NOT smooth machined surfaces. This is THE primary physical authentication point

• Long Alnico Magnets: Early PAFs feature long magnets approximately 2.5" — later PAFs and post-PAF pickups use shorter magnets. Magnet length serves as dating evidence within the PAF era

• Unpotted or Lightly Potted: Original PAFs were not wax-potted (or very lightly potted) — creating microphonic sensitivity that contributes harmonic complexity and "alive" tonal character

• "Patent Applied For" Sticker: Black rectangular sticker on underside reading "PATENT APPLIED FOR" — present on pickups from 1957 through approximately 1962. Many stickers lost over 65+ years — absence doesn't indicate fake

• DC Resistance Range: Approximately 7.0-8.5k ohms — lower than most modern humbuckers, contributing to PAF's clarity and dynamic responsiveness

• Black or Cream Bobbins: Two separate bobbins per pickup — double black (most common), double cream/white (rare premium), or zebra/one of each (rare premium)

• Plain Enamel Wire: 42 AWG plain enamel copper magnet wire — NOT poly-coated. Wire type contributes specific tonal characteristics

• Limited Production: Approximately 1957-1962 production — genuine examples increasingly scarce

Value Context: Original PAF pickups represent the single highest-value component on any vintage Gibson guitar. On a 1958-1962 Les Paul Standard, ES-335, or ES-345, original PAFs can represent 40-60% of total instrument value. PAF replacement is the single most value-destroying modification possible on PAF-era Gibson instruments.

In Edgewater's experience authenticating PAF pickups across Ohio and the Midwest, the counterfeiting problem is severe — we estimate 30-50% of pickups represented as "original PAFs" in the general marketplace are either complete reproductions, rewound originals, or "Frankenstein" assemblies mixing original and reproduction components. Cover removal for internal inspection is ESSENTIAL for any transaction involving claimed PAFs. External appearance alone is insufficient — modern reproductions can fool experienced buyers without internal examination.

If you own a Gibson guitar from 1957-1962 that may contain original PAF pickups, Edgewater provides free PAF authentication including cover removal and internal inspection. Call (440) 219-3607.

PAF Pickup Timeline and Dating

Development and Production Timeline

CRITICAL: The patent was granted in February 1959 — but Gibson continued applying "Patent Applied For" stickers through approximately 1962. The sticker vs stamp transition was gradual, not overnight. Some 1961-1962 pickups have no sticker AND no stamp — "no-sticker PAFs" that are authentic PAF-construction pickups.

Models Equipped with PAFs

Complete PAF Authentication Guide

Step 1: External Inspection (Cover On)

What to check WITHOUT removing cover:

• Nickel or chrome plated cover (no gold on standard PAFs — gold = plated after market or special model)

• Two rows of pole pieces — six adjustable (slotted screws) and six non-adjustable (smooth slugs)

• Mounting ring with correct screw pattern

• Lead wire with braided shield and cloth covering

External inspection alone is INSUFFICIENT for PAF authentication. Modern reproductions are externally identical. Cover removal is mandatory.

Step 2: Cover Removal and Internal Inspection (CRITICAL)

Base Plate Authentication (most reliable single test):

• Authentic PAF: Rough sand-cast base plate with visible casting texture, unfinished surface

• Fake/Later: Smooth machined base plate with uniform surface finish

• This is THE single most reliable physical authentication point

Magnet Authentication:

• Early PAFs (1957-1959): Long Alnico magnets approximately 2.5"

• Later PAFs (1960-1962): Progressively shorter magnets

• Post-PAF (patent number): Shorter magnets

• Magnet length provides dating within PAF era

Magnet Type: Both Alnico II and Alnico V magnets appear in authentic PAFs throughout production. Neither type is definitively "correct" or "incorrect" — both were used. Alnico II produces slightly warmer, lower-output character; Alnico V produces slightly brighter, higher-output character.

Bobbin Inspection:

• Black or cream ABS plastic bobbins

• Two separate bobbins per pickup

• Specific mold marks from original Kalamazoo tooling

• Hand-wound coil visible — slight irregularities in winding pattern

Bobbin Color Configurations:

Wire Inspection:

• 42 AWG plain enamel copper magnet wire (NOT poly-coated)

• Plain enamel has distinctive appearance under magnification

• Poly-coated wire indicates later production or rewound pickup

PAF Sticker:

• Black rectangular paper sticker reading "PATENT APPLIED FOR"

• Sticker presence adds 10-20% premium

• Many stickers lost over 65+ years — absence doesn't indicate fake

• Reproduction stickers are extremely common — sticker alone proves nothing

• Authentic stickers show age-appropriate yellowing, edge lifting, adhesive aging

Step 3: Electrical Measurements

DC Resistance: Approximately 7.0-8.5k ohms per pickup

Individual Variation: Hand-winding creates resistance variation between pickups. Two PAFs from the same guitar may read 7.2k and 8.0k — this is NORMAL and expected. Uniformity would be suspicious.

PAF Specifications

What Do PAF Pickups Sound Like?

The PAF Voice

Clean Character: Warm, woody, clear with exceptional note definition. Complex harmonic content responds to playing dynamics — lighter picking produces clean, bell-like tones; harder attack introduces natural compression and harmonic overtones. Full midrange presence without muddiness. Treble clarity without harshness.

Overdriven Character: Musical saturation with natural compression. Singing sustain with rich harmonics. Smooth overdrive that maintains note definition even at high gain. The unpotted construction creates controlled microphonic feedback adding dimension and "life" to the sound.

Why PAFs Sound Different from Modern Humbuckers:

• Lower output (7.0-8.5k vs 10-16k+ for modern) = more clean headroom, more dynamic range

• Plain enamel wire = different electromagnetic properties than poly-coated

• Hand-wound irregularity = complex harmonic content

• Unpotted = microphonic sensitivity adding harmonic dimension

• Alnico magnets = warmer compression than ceramic magnets

• 65+ years of aging = magnet relaxation contributing to "opened up" character

PAF vs Patent Number vs T-Top

IMPORTANT: Early patent number pickups (1962-1965) are often considered tonally indistinguishable from late PAFs in blind comparison. The primary difference is the stamp vs sticker — construction methods remained nearly identical during the transition period.

PAF Value Factors (2026 Market)

Value by Configuration

What Affects PAF Value

Sticker Presence: Adds 10-20% premium. Sticker condition matters — intact, readable stickers more valuable than fragments.

Bobbin Configuration: Double white/cream commands 15-25% premium. Zebra commands 10-20% premium. Double black is baseline.

Resistance Reading: Readings in 7.0-8.5k "sweet spot" range command premiums over outliers.

Provenance: PAFs from documented famous instruments or players command extraordinary premiums.

Condition: Intact lead wires, strong magnets, original solder joints, no corrosion — all contribute to maximum value.

Guitar of Origin: PAFs from Les Paul Bursts command premiums over PAFs from ES-175 or other models due to provenance prestige.

Counterfeiting: How to Spot Fake PAFs

Common Counterfeiting Methods

1. Complete Reproductions: Modern pickups built with period-correct materials and reproduction stickers. Detected through base plate casting quality, wire type, bobbin mold marks, and solder characteristics.

2. Rewound Originals: Original PAF bobbins with new wire. Detected through wire type inspection (poly vs enamel), resistance readings inconsistent with original winding pattern, and solder evidence at lead connections.

3. Frankenstein Assemblies: Mix of original and reproduction components — original bobbins with new magnets, original base plates with rewound coils. Requires comprehensive inspection of ALL components.

4. Reproduction Stickers on Non-PAFs: Patent number or later pickups with fake PAF stickers applied. Detected through construction inspection (patent numbers have stamp marks, different construction details).

Red Flags

• Smooth machined base plate (originals rough sand-cast)

• Poly-coated wire (originals plain enamel)

• Resistance outside 7.0-8.5k range

• New-looking sticker on claimed 65-year-old pickup

• Short magnets on claimed early (1957-1959) PAF

• Uniform winding (hand-wound should show irregularities)

• Modern solder at lead connections

• Bobbins without correct Kalamazoo mold marks

In Edgewater's experience, the most sophisticated fakes use original PAF bobbins (sourced from damaged pickups) with new wire — creating a pickup that passes visual bobbin inspection but fails wire-type analysis. Always verify BOTH bobbin authenticity AND wire type for complete authentication.

Common Issues with Vintage PAFs

1. Sticker loss: Most common issue. Stickers detach over 65+ years. Reduces value 10-20% but doesn't affect tone or authenticity.

2. Weak magnets: Alnico magnets lose strength over decades. Affects tone (slightly lower output). Modest value impact (5-10%) unless severely degraded.

3. Broken lead wire: Fragile cloth-covered leads break at solder joints. Repairable by qualified technician with minimal value impact if properly done.

4. Corrosion: Mounting hardware, base plate edges may show corrosion. Moderate impact depending on severity.

5. Previous potting: Some PAFs were wax-potted by owners/technicians to reduce microphonic feedback. Reduces value 10-15% — changes tonal character.

6. Cover removal damage: Pickup covers sometimes soldered — removal can damage base plate if improperly done. Coverless PAFs slightly less valuable than covered (5-10%).

7. Rewound coils: One or both coils rewound with modern wire. Dramatically reduces value — essentially becomes a reproduction in original shell.

Selling Your PAF Pickups: Your Options Compared

Why Choose Edgewater

PAF Authentication Expertise: We perform complete internal inspection — cover removal, base plate casting analysis, magnet measurement, wire type verification, bobbin inspection, resistance measurement, and solder examination. We've authenticated hundreds of claimed PAFs and understand the counterfeiting landscape.

Premium Valuations: We pay 30-40% more than shops because we understand PAF-specific value factors — bobbin configuration, sticker condition, resistance range, and provenance.

Immediate Payment: Cash or bank transfer upon authentication and acceptance.

Geographic Coverage: Ohio, Michigan, Pennsylvania, Indiana, West Virginia. We travel for PAF-era instruments.

Ready to authenticate your PAF pickups? Call (440) 219-3607 or visit edgewaterguitars.com.

Frequently Asked Questions About Gibson PAF Pickups

Q: How can I tell if my Gibson has original PAF pickups?

A: Cover removal required for definitive authentication. Check for: rough sand-cast base plate (NOT smooth machined), long Alnico magnets (approximately 2.5" on early examples), hand-wound coils with plain enamel wire (NOT poly-coated), black or cream bobbins with Kalamazoo mold marks, DC resistance 7.0-8.5k ohms. External inspection alone is insufficient — modern reproductions are externally identical.

Q: My PAF doesn't have a sticker — is it fake?

A: Not necessarily. Many authentic PAFs lost their "Patent Applied For" stickers over 65+ years. Sticker absence doesn't indicate fake — it just means the sticker fell off. Authentication relies on internal construction details (base plate, magnets, wire, bobbins), not sticker presence. Late PAFs (1961-1962) may never have had stickers.

Q: What is a double white PAF?

A: A PAF with two cream/white bobbins instead of the standard double black. Double whites are the rarest standard bobbin configuration, commanding 15-25% premiums over double black. Authentication especially critical for double whites due to high value — reproduction cream bobbins are common.

Q: Are PAFs worth more than the guitar they're in?

A: Sometimes. A pair of authenticated PAFs can be worth more than many complete vintage guitars. On some instruments (late 1950s ES-175, for example), the PAFs may represent the majority of the instrument's total value. This creates incentive for PAF removal and separate sale — which is why PAF-era guitars with replaced pickups are so common.

Q: What is an early patent number pickup and is it as good as a PAF?

A: Early patent number pickups (approximately 1962-1965) are stamped "Pat. No. 2,737,842" instead of having the PAF sticker. Early examples retain hand-wound construction, long magnets, and plain enamel wire — construction nearly identical to late PAFs. Many players consider them tonally indistinguishable from PAFs. They command lower prices than PAFs primarily due to collector designation, not tonal inferiority.

Q: Does Edgewater authenticate PAF pickups?

A: Yes — free PAF authentication including cover removal, base plate inspection, magnet measurement, wire type verification, bobbin examination, resistance testing, and comprehensive evaluation. We serve Ohio, Michigan, Pennsylvania, Indiana, West Virginia. Call (440) 219-3607.

Q: Can a rewound PAF be detected?

A: Yes — rewound PAFs use modern wire (poly-coated instead of plain enamel), show different winding patterns, and may have modern solder at lead connections. Wire type inspection under magnification is definitive. A rewound PAF dramatically reduces value — the coils are the pickup's soul.

Q: What Alnico magnet type is correct for PAFs?

A: Both Alnico II and Alnico V were used throughout PAF production — neither is "wrong." Alnico II produces slightly warmer, lower-output character. Alnico V produces slightly brighter, higher-output character. Both types appear in authenticated original PAFs. The magnet LENGTH (approximately 2.5" on early examples, shorter on later) is more useful for dating than magnet type.

Related Resources

• Gibson Serial Number Lookup

• Gibson ES-335 Definitive Guide

• 1959 Gibson Les Paul Standard

• Gibson Les Paul Custom Black Beauty

• 1957 Gibson Les Paul Goldtop

• Sell Your Guitar to Edgewater

Recently Purchased: PAF Authentication Case Study

The Instrument: 1960 Gibson ES-335TD in cherry — brought to Edgewater with claimed original PAF pickups. The owner's father purchased the guitar new and the family believed the pickups were original. Two local shops had offered "ES-335 with humbuckers" pricing without verifying PAF authenticity.

The Authentication Process: Edgewater performed complete PAF verification on both pickups:

Neck Pickup: Cover removed revealing rough sand-cast base plate (authentic PAF casting texture — NOT smooth machined). Long Alnico magnet measured 2.47" (consistent with 1960 PAF specification). Double black bobbins with correct Kalamazoo mold marks. Hand-wound coils with plain enamel wire confirmed under magnification (NOT poly-coated). DC resistance 7.4k ohms (perfect PAF range). No PAF sticker present (lost over 66 years). All solder joints original vintage appearance. Verdict: Authentic 1960 PAF.

Bridge Pickup: Cover removed revealing rough sand-cast base plate. Long Alnico magnet measured 2.44". Double black bobbins with correct mold marks. Plain enamel wire confirmed. DC resistance 7.9k ohms. Partial PAF sticker fragment visible (approximately 30% remaining). Original solder joints. Verdict: Authentic 1960 PAF with partial sticker.

The Outcome: "The two shops that looked at it never removed the pickup covers," the family explained. "They just called it 'an old 335 with humbuckers' and offered accordingly. Edgewater removed both covers right there, showed us the rough castings, measured the magnets, checked the wire type under magnification, and confirmed both pickups are genuine 1960 PAFs — one with a partial sticker still attached. They explained that the PAFs alone represent a significant portion of the guitar's total value. Their offer was more than three times the highest shop quote because the shops never verified what was actually inside those pickup covers."

Edgewater Guitars provides free PAF pickup authentication throughout Ohio, Michigan, Pennsylvania, Indiana, and West Virginia. We perform comprehensive internal inspection — cover removal, base plate analysis, magnet measurement, wire verification, bobbin examination, and resistance testing. Contact us: [link] | (440) 219-3607.