Wal Basses Serial Number Lookup & Dating Guide
Verify authenticity, decode production year, and look up factory specifications for Wal Basses guitars.
Where to Find the Serial Number on a Wal Basses Guitar
For all vintage and modern Wal basses, the serial number is stamped into the wood on the rear of the headstock between the Schaller tuners.
Inside the copper-foil lined electronics cavity, inspect the handwritten inspection label or copper floor stamp noting build date, customer name, and wiring details.
Authentic Wal basses shipped with an official Electric Wood wiring booklet and instruction manual documenting the serial number and pot filter settings.
Wal Basses Serial Number Formats & Historical Dating Cheat-Sheet
| Production Era | Serial Format | Decoding Rule / Meaning | Example |
|---|---|---|---|
| W-Series Custom Production (1982–Present) | W + 4 digits (e.g. W1800 to W4500+) | The standard serial format for all Custom MK1, MK2, and MK3 basses produced by Electric Wood Ltd (High Wycombe) and Paul Herman (Surrey). | W2840 -> Manufactured circa 1987 in High Wycombe, England |
| PB / Pro Series Vintage Era (1978–1981) | PB + 4 digits (e.g. PB1100 to PB1700) | Early passive/active Pro Bass models featuring solid ash bodies and single or twin multicoil pickups. | PB1320 -> Pro Series 1-pickup bass from 1979 |
| JG / Early Custom Shop Prototypes (1974–1978) | JG + 2-3 digits or handwritten code | Ultra-rare initial custom builds for artists like John Gustafson and early session pioneers. | JG08 -> Early 1976 prototype build |
Wal Basses Hardware Verification & Anti-Counterfeit Audit
3-Step Physical Inspection & Anti-Counterfeit Checklist
Rotate the tone pots: they act as steep low-pass filter frequency sweeps. Pull each tone pot outward: an authentic Wal engages a dynamic 10dB resonant boost at that chosen frequency. Standard tone controls prove fraudulent circuitry.
Use an unmagnetized small screwdriver to gently tap each individual pole piece. Every single string pole must produce an audible click, proving both micro-coils in that pair are fully functioning.
Examine the body perimeter: an authentic Wal always features a thick solid mahogany body core flanked by bookmatched exotic faceplates (Shedua, American Walnut, Padauk, Wenge).
average resale price premium that 4/5-string Wal MK2 basses command over original order pricing due to legendary Tool bass tone demand.
of Wal basses feature hand-wound individual coils under each pole piece (8 coils per 4-string pickup, 10 coils per 5-string pickup).
average listing duration before sale for clean Wal MK1 and MK2 basses posted on TalkBass Classifieds and Basschat UK.
Wal Generation Connoisseur Preference: MK1 vs MK2 vs MK3
Community Verdict: The Wal MK2 remains the holy grail of heavy rock and progressive bass tone, driving unprecedented international collector premiums.
Frequently Asked Questions: Dating & Authenticating Wal Basses
Where is the serial number located on a Wal bass?
The serial number is stamped into the wood on the back of the headstock between the tuners. It is also recorded on the internal copper shielding label inside the control cavity.
What makes Wal bass pickups and electronics different from other basses?
Wal pickups are proprietary multicoils, containing a separate pair of hand-wound coils for every string. Combined with Ian Waller's parametric low-pass filter preamps, players can sweep the resonant cutoff frequency to produce the famous cutting "Wal Growl".
Why are Wal basses so difficult to find and expensive used?
Wal basses are built by a tiny team in Surrey, England at a rate of only a few dozen per year. With custom order waitlists spanning multiple years, pre-owned instruments frequently trade for $10,000 to $16,000+ on secondary markets.
Explore Wal Basses Market Prices & Buying Advice
Knowing your guitar's build year is the first step in determining its resale value. Read our comprehensive 2026 buying guide and valuation tables to see current market trends for Wal Basses.
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