How to Spot a Fake / Banksy
Authentication GuideHow to Spot a Fake Banksy
Banksy is the most widely traded name in accessible art — by one open-market estimate, roughly 80,000 Banksy and Banksy-world lots changed hands on eBay in the past year, at around a $200 average. That scale is a gift to collectors, and the good news is that Banksy has one of the clearest authentication systems in the art world: Pest Control is the sole body that authenticates Banksy. A genuine Banksy edition, original or object is sold with — or verifiable against — a Pest Control Certificate of Authenticity. This guide covers the full career: how to read the Pest Control COA and its matched Di-faced Tenner, confirm a Pictures on Walls (POW) edition, tell a signed run from an unsigned one, check paper and screenprint surface, recognise official Gross Domestic Product (GDP) objects, and buy with total confidence anywhere along the market.
One authority, total confidence
Because a single body — Pest Control — authenticates every Banksy, verification is refreshingly simple: it's documentary first, physical second. Confirm the Pest Control certificate and, where applicable, its matched torn Di-faced Tenner half; then check that the edition, format, paper and screenprint surface line up with the documented POW release. The vast open market — tens of thousands of listings a year — is where the fun of the hunt lives, and it divides cleanly into two lanes: authenticated Banksy (prints, originals and GDP objects that carry Pest Control paper) and Banksy-world pieces (homages, reproductions and style works). Knowing which lane you're in is the one skill that makes you a confident buyer at any price.
What an authentic Banksy carries
Pest Control COA
The decisive marker. A genuine Banksy edition or original is accompanied by a Pest Control Certificate of Authenticity carrying a unique COA number that can be checked against the object being sold. Pest Control is the only body that authenticates Banksy — a gallery COA, an auction receipt or a signature alone does not replace it. Where there's Pest Control paper, you can buy with total confidence.
The Di-faced Tenner
Many older Pest Control certificates were issued with a torn half of a Banksy "Di-faced Tenner" (the spoof £10 note) whose ragged edge matches the half retained on file. Where a release is documented to include the torn-tenner half, look for that matched edge — it's one of the most elegant authentication devices in the market.
Pictures on Walls (POW) publication
Banksy's print editions were largely published by Pictures on Walls (POW). The title, documented edition size, and whether the run is signed or unsigned should match the POW release record for that exact image — the reference every specialist checks first.
Screenprint surface & paper
Genuine editions are screenprints: layered ink sitting on the surface, clean stencil edges and correct paper stock for the release. Under magnification you want that crisp, layered ink — not the fine digital halftone dot pattern of a reproduction. A quick loupe check confirms you have the edition, not a poster of it.
Signed vs unsigned & proofs
Most images exist as a signed edition and a larger unsigned edition, plus a small number of artist proofs (AP). Each carries its own documented size and value — so a signed-edition claim should match the signature placement, the numbered fraction and the run recorded for that image.
Official GDP objects
Banksy's only official products come through Gross Domestic Product™ (GDP), always publicly announced. Genuine GDP pieces — and printed curios like the Di-faced Tenner — are collectible in their own right; anything else sold as "official Banksy merch" simply isn't. Measure prints against documented sheet sizes, and verify Gauntlet pieces via our COA lookup alongside the Pest Control paperwork.
Reading the open market
With tens of thousands of Banksy-related listings trading each year at a modest average, most of what you'll see falls into three friendly-to-navigate groups. Knowing which is which lets you buy exactly what you intend — a blue-chip edition, an affordable curio, or a striking Banksy-world piece for the wall.
- Authenticated editions & originals. Carry — or can be matched to — a Pest Control COA. This is the blue-chip lane; the certificate is the deal.
- GDP objects & printed curios. Official Gross Domestic Product pieces and the Di-faced Tenner — collectible, accessible, and valued on condition and documentation.
- Banksy-world pieces. Homages, reproductions and style works. Wonderful for the wall and honestly described as such — collected for the imagery, not as authenticated Banksy artworks.
- Match the paper to the piece. For any edition or original, confirm the Pest Control certificate and its unique number against the object — the one check that settles everything.
- Read the surface. A quick loupe tells a layered screenprint from a digital reproduction, so you always know the medium you're buying.
- Comp the price. The market median is a helpful compass: it tells you whether you're looking at the signed edition, the unsigned run, or a Banksy-world piece — and helps you spot a genuine bargain.
Step-by-step verification checklist
- Confirm there is a genuine Pest Control Certificate of Authenticity and read its unique COA number — the foundation of every authenticated Banksy edition or original.
- Match the certificate to the object: title, edition, and where applicable the torn Di-faced Tenner half whose edge lines up with the certificate.
- Identify the exact image and release and confirm the Pictures on Walls (POW) publication and documented edition size.
- Confirm signed vs unsigned vs artist proof, and check any pencil numbering fraction against the recorded run for that image.
- Inspect the screenprint surface and paper under raking light and magnification — layered ink on the correct stock confirms the edition.
- Measure the sheet dimensions against the documented size, trace provenance, and comp the price against market data — then buy with confidence.
What you're buying — the full range
- Signed edition
- A POW-published screenprint hand-signed by Banksy and numbered against a documented run, sold with a Pest Control COA. The core collectible and highest baseline value for a given image.
- Unsigned edition
- The larger, more accessible run of the same image — genuine and collectible with a Pest Control COA, and the smartest entry into authenticated Banksy. Priced as its own run, not as the signed edition.
- Artist Proof (AP)
- A small proof run outside the main edition, marked "AP." Can command a premium over the standard edition when genuinely documented and Pest Control authenticated.
- Originals & canvases
- Unique works — the apex of the market — placed with a Pest Control COA through the major houses. Studio and hand-finished canvases in Banksy's language are also collected in the Banksy-world lane, on imagery, quality and provenance.
- GDP objects & the Di-faced Tenner
- Official Gross Domestic Product homewares and printed curios such as the spoof £10 note — the most affordable, personality-rich way to own the iconography. Collect on condition and documentation.
- Reproductions, giclée & Banksy-world pieces
- Open reproductions, posters and homages of Banksy images. Terrific for the wall when honestly described — valued for the imagery, and never listed or priced as an authenticated screenprint edition.
Frequently asked questions
What is the first thing to check on a Banksy?
The Pest Control Certificate of Authenticity. Pest Control is the only body that authenticates Banksy, so a genuine edition or original is sold with a Pest Control COA carrying a unique number that can be matched to the object — often, for older certificates, with a torn Di-faced Tenner half whose edge matches the file. A gallery COA, an auction receipt, or a signature alone is not a substitute. Where the Pest Control paper is present, you can buy with total confidence.
How big is the Banksy market — and is it accessible?
Enormously, and yes. By one open-market estimate, roughly 80,000 Banksy and Banksy-world lots changed hands on eBay in the past year at around a $200 average. Most of that volume is prints, printed curios and Banksy-world pieces rather than authenticated originals — which is exactly why knowing the lanes (authenticated edition vs. GDP object vs. Banksy-world piece) lets you buy precisely what you want at any budget.
Does a "signed COA from the gallery" make a Banksy authentic?
No — only Pest Control authenticates Banksy. A seller-issued or "gallery COA," a receipt, or a hand signature does not replace a Pest Control certificate. For any edition or original, the Pest Control paper and its matchable number are what confirm authenticity.
What is the difference between a signed and an unsigned Banksy edition?
Most Banksy images exist as a smaller hand-signed, numbered edition and a larger unsigned edition of the same image, both published by Pictures on Walls (POW). Both are genuine when accompanied by a Pest Control COA, but they carry different documented sizes and different values — so each should be listed and priced as its own run.
Are GDP objects and the Di-faced Tenner collectible?
Yes. Gross Domestic Product (GDP) is the source of Banksy's only official objects, always publicly announced, and printed curios like the Di-faced Tenner are collected in their own right. They're the most accessible way to own a genuine piece of the Banksy world — valued on condition, completeness and documentation.
How do I verify a Banksy I already own?
Start with the Pest Control certificate and its number, and match it to the object (and to the torn Di-faced Tenner half where applicable). Confirm the image, POW release, and signed-versus-unsigned status, then check the screenprint surface, paper and sheet dimensions against the documented edition. If purchased from Gauntlet Gallery, verify the record on file via our COA lookup.
Buy Banksy with confidence
Every Banksy at Gauntlet Gallery is reviewed against its Pest Control documentation, the POW release record, signature and edition, paper and screenprint surface before it's listed — with a record you can verify.