Complete Gibson serial number guide by era

Table of Contents

1. Where to Find Gibson Serial Numbers

2. Pre-War & Early Gibson (1902-1951)

3. Golden Era (1952-1961)

4. Transition Period (1961-1969)

5. Norlin Era (1970-1986)

6. Modern Gibson (1977-2025)

7. Custom Shop Serials

8. Model-Specific Guides

9. Authentication & Dating Methods

10. Market Trends & Value Factors

Where to find Gibson serial numbers

Gibson has used several locations for serial numbers throughout its history:

• Solid Body Electric Guitars

• Primary Location: Back of headstock

• Secondary Location: neck pocket (rare)

• Years: 1952-present

• Hollow Body and Semi-Hollow Guitars

• Primary Location: F-hole label

• Secondary Location: back of headstock

• Years: 1902-present

• Acoustic Guitars

• Primary Location: Inside soundhole label

• Secondary Location: Back of headstock

• Years: 1902-present

Special cases & exceptions

• 1961-1969 guitars: May have numbers in multiple locations

• Factory seconds: Often have "2" stamp or irregular numbering

• Prototypes: May lack serial numbers entirely

• Artist models: Sometimes have special prefixes or locations

Gibson serial number systems by era

Pre-War & Early Gibson Serial Numbers (1902-1951) {#prewar}

Factory Order Numbers (FON) System

The earliest Gibsons used Factory Order Numbers rather than serial numbers. These were internal production codes, not customer-facing serials.

How to Read FONs:

• 1902-1941: Numeric System

• Format: Batch number + instrument rank

• Example: 328-42 (batch 328, 42nd instrument)

• Location: Ink stamp inside body or on neck block

1935-1941: Letter Suffix System

• A = 1935

• B = 1936

• C = 1937

• D = 1938

• E = 1939

• F = 1940

• G = 1941

1942-1951: Inconsistent Numbering This period featured sporadic numbering due to WWII production changes:

Golden Era Gibson Serial Numbers (1952-1961) {#golden}

Letter Prefix FON System (1952-1961)

Gibson's most collectible era used letter prefixes for Factory Order Numbers:

• 1952: FON Prefix Z | Example: Z 2341 | Notes: First year of Les Paul

• 1953: FON Prefix Y | Example: Y 4567 | Notes: P-90 pickups standard

• 1954: FON Prefix X | Example: X 8901 | Notes: Les Paul Custom debuts

• 1955: FON Prefix W | Example: W 2345 | Notes: Tune-o-matic introduced

• 1956: FON Prefix V | Example: V 6789 | Notes: Les Paul Junior debuts

• 1957: FON Prefix U | Example: U 3456 | Notes: PAF humbuckers introduced

• 1958: FON Prefix T | Example: T 7890 | Notes: First sunburst Les Pauls

• 1959: FON Prefix S | Example: S 1234 | Notes: Holy grail burst year

• 1960: FON Prefix R | Example: R 5678 | Notes: Last original Les Pauls

• 1961: FON Prefix Q | Example: Q 9012 | Notes: SG body style begins

Ink Stamped Serials (1952-1961)

Solid body guitars also received ink-stamped numbers on the headstock back:

Decoding Pattern:

First digit indicates year:

• 2xxxx = 1952

• 3xxxx = 1953

• 4xxxx = 1954

• 5xxxx = 1955

• 6xxxx = 1956

• 7xxxx = 1957

• 8xxxx = 1958

• 9xxxx = 1959

• 0xxxx = 1960

• 1xxxx = 1951 or 1961

Special Note: A guitar with both FON and ink stamp provides double verification of authenticity.

Transition Period Serial Numbers (1961-1969) {#transition}

The Most Confusing Era

Gibson's 1960s numbering is notoriously unreliable. Numbers were reused, applied randomly, and often don't match production years.

Impressed 6-Digit Numbers

Key Identifier: Numbers stamped (impressed) into wood without "Made in USA" underneath

Serial Range Reference (Use with Caution)

Dating 1960s Gibsons: The Multi-Point Method

Never rely on serial numbers alone for 1961-1969 guitars. Use this checklist:

1. Pot Codes (most reliable)

   • Format: 137YYWW (CTS manufacturer)

   • Example: 1376425 = 25th week of 1964

2. Pickup Construction

   • PAF stickers: 1957-1962

   • Patent numbers: 1962-1965

   • T-tops: 1965-1975

3. Hardware Features

   • Kluson Deluxe: 1950s-1969

   • Grover: 1970s onwards

   • ABR-1 bridge types vary by year

4. Logo & Inlays

   • Dot over "i" in Gibson: Pre-1969

   • No dot: Post-1969

   • Pearl vs Clay dots

5. Neck Features

   • Volute: 1969-1981

   • Width changes by year

   • Binding nibs presence

Norlin era serial numbers {#norlin}

"Made in USA" Stamp Era (1970-1975)

Key Identifier: "MADE IN USA" stamped below the serial number

Decoding Complexity

Numbers from this era frequently overlap. The same serial might indicate multiple years:

• 000000: Possible Years 1973 | Verification: Check pot codes

• 100000-199999: Possible Years 1970-1975 | Verification: Volute presence helps

• 200000-299999: Possible Years 1973-1975 | Verification: "Made in USA" stamp

• 300000-399999: Possible Years 1974-1975 | Verification: Pancake body common

• 400000-499999: Possible Years 1974-1975 | Verification: Check neck construction

• 500000-599999: Possible Years 1974-1975 | Verification: Mini-humbuckers on Deluxe

• 600000-699999: Possible Years 1970-1972, 1974-1975 | Verification: Wide overlap

• 700000-799999: Possible Years 1970-1972 | Verification: Early Norlin features

• 800000-899999: Possible Years 1973-1975 | Verification: Mid-Norlin

• 900000-999999: Possible Years 1970-1972 | Verification: Check for volute

Eight-Digit Label System (1975-1977)

Format: YYMMDDPPP or 99XXXXXX

Decoding:

• 99xxxxxx = 1975

• 00xxxxxx = 1976

• 06xxxxxx = 1977

Modern Gibson serial numbers {#modern}

The Reliable Era: 8-Digit System

Starting in 1977, Gibson finally implemented a logical dating system.

Standard Format (1977-2005)

Pattern: YDDDYPPP

Decoding Method:

• Y = Year digit (1st and 5th positions)

• DDD = Day of year (2-4 positions)

• PPP = Production number (6-8 positions)

Examples:

• 82345123 = 1988 (8_8), day 234, #123

• 91237456 = 1999 (9_9), day 123, #456

• 00120789 = 2000 (0_0), day 012, #789

Nashville Format (2005-2013)

Pattern: YYPPPPPPP

• YY = Last two digits of year

• PPPPPPP = Production number

Current Format (2014-2025)

Pattern: YYMMDDFFF

• YY = Year (14 = 2014, 25 = 2025)

• MM = Month

• DD = Day

• FFF = Factory batch

Special Prefixes & Their Meanings

CS: Custom Shop | Years: 1993-present

R: Reissue/VOS | Years: 1993-present

A: Anniversary model | Years: Various

LPB: Les Paul Brazilian | Years: 2003

M: Slash signature | Years: 2008-present

DG: Dickey Betts | Years: 2001-2003

Gibson-specific guides

Different Gibson models often have unique characteristics that help with dating. For more detailed information specific to your model, visit these dedicated guides:

Model-Specific Serial Number Guides

• Les Paul Models

• Identifying Specific Les Paul Years

• Goldtop

• Years: 1952-1957

• Serial Location: Headstock back

• Key Features: P-90s to PAFs in '57

• Custom

• Years: 1954-1960

• Serial Location: Headstock back

• Key Features: Black Beauty, blocks

• Standard

• Years: 1958-1960

• Serial Location: Headstock back

• Key Features: Sunburst, PAFs

• Junior

• Years: 1954-1961

• Serial Location: Headstock back

• Key Features: Single P-90

• Special

• Years: 1955-1960

• Serial Location: Headstock back

• Key Features: Two P-90s

• SG/Les Paul

• Years: 1961-1963

• Serial Location: Headstock back

• Key Features: Transitional model

• Deluxe

• Years: 1968-1985

• Serial Location: Headstock back

• Key Features: Mini-humbuckers

• Studio

• Years: 1983-present

• Serial Location: Headstock back

• Key Features: No binding

• Standard (Reissue)

• Years: 1968-present

• Serial Location: Headstock back

• Key Features: Various specs

• SG Models

• SG Standard

• Introduction: 1961

• Unique Features: Originally "Les Paul"

• SG Special

• Introduction: 1961

• Unique Features: P-90 pickups

• SG Junior

• Introduction: 1961

• Unique Features: Single P-90

• SG Custom

• Introduction: 1961

• Unique Features: Three pickups, blocks

ES Series (Hollow/Semi-Hollow)

• ES-335

• Years: 1958-present

• Serial Location: F-hole label

• Key ID Features: Dot or block inlays

• ES-345

• Years: 1959-1982

• Serial Location: F-hole label

• Key ID Features: Varitone, stereo

• ES-355

• Years: 1958-present

• Serial Location: F-hole label

• Key ID Features: Blocks, gold hardware

• ES-175

• Years: 1949-present

• Serial Location: F-hole label

• Key ID Features: Single/double cut

• ES-125

• Years: 1941-1970

• Serial Location: F-hole label

• Key ID Features: P-90 pickup(s)

Acoustic Models

• J-45

• Serial Location: Soundhole label

• Dating Notes: FON system pre-1947

• J-200/SJ-200

• Serial Location: Soundhole label

• Dating Notes: Premium model

• Hummingbird

• Serial Location: Soundhole label

• Dating Notes: 1960-present

• Dove

• Serial Location: Soundhole label

• Dating Notes: 1962-present

• L-Series

• Serial Location: Soundhole label

• Dating Notes: Archtop acoustics

Advanced authentication & dating methods

When Gibson serial numbers are absent, unclear, or known to be from an inconsistent period, these alternative methods can provide more accurate dating:

Potentiometer Codes (Most Reliable) Format: XXYYWW

Electric guitar potentiometers (volume and tone controls) often have their own date codes that can accurately date a guitar within a few weeks:

• CTS Pots: Most common in Gibson guitars since the 1950s

  • Format: 137xxxx (13=manufacturer, 7=1967, xxxx=week)

• Centralab Pots: Used in some 1950s-1960s models

  • Similar dating system to CTS

• Allen Bradley Pots: Found in some 1950s and early 1960s models

  • More complex coding system

Accessing Pot Codes: Requires removing the control cavity cover or pickguard. Codes are typically stamped on the back or side of the potentiometer.

Format: XXYYWW

• XX = Manufacturer (137=CTS, 134=Centralab, 140=Clarostat)

• YY = Year

• WW = Week

• Example: 1376425 = CTS, 1964, week 25

Capacitor Codes

• Bumble Bee (1950s-early 1960s)

• Black Beauty (mid-1960s)

• Orange Drop (1970s-present)

Transformer Codes (Amplifiers)

• Similar dating system to pots

• Essential for amp authentication

Expert authentication services

For valuable vintage Gibson instruments or when you need definitive answers about age and authenticity, consider these professional resources:

• Expert Appraisal

• Our team of vintage Gibson specialists can provide:

• Precise dating based on all available evidence

• Authentication of originality and components

• Complete documentation of features and specifications

• Fair market value assessment

• Condition grading

• Documentation Services

• We offer comprehensive documentation including:

• Detailed photography

• Component analysis

• Historical context research

• Ownership history investigation

• Comparative analysis with known authentic examples

• Free Initial Consultation

• Contact us today for a free initial assessment of your Gibson:

• Upload photos of your guitar

• Share the serial number and any other identifying information

• Describe your guitar's history and condition

• Ask specific questions about dating or value

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