How to Vet an Antiquities Dealer: The Questions, the Paperwork and the Red Flags
Almost every serious problem in antiquities collecting, from fakes to looted objects to seized shipments, starts with buying from the wrong source. A good dealer won't make you an expert, but they will answer questions in writing, show you real documents, and stand behind what they sell. A bad one will offer a confident story and a nicely printed certificate.
This guide gives you a practical way to tell the difference, including a document-by-document look at what provenance paperwork actually proves and what it doesn't.
What a reputable antiquities dealer looks like
No single credential makes a dealer trustworthy, but good dealers tend to share a recognizable set of habits:
- They publish provenance in the listing, with names, places and dates where they can, and say plainly when history is limited.
- They answer questions in writing, including uncomfortable ones about export and import.
- They offer a meaningful guarantee covering authenticity and title, not just a short return window.
- They belong to trade associations with published codes of ethics and dispute procedures, and they can tell you which ones.
- They check stolen-object databases and can tell you which ones they searched.
- They turn things down. A dealer who says "I won't handle that without paperwork" is showing you their standards.
- They have a physical, verifiable business: an address, a trading history, and a name that appears in auction records, fair catalogs or publications.
Questions to ask before you buy
Send these by email so you have the answers on record. How a dealer responds matters as much as what they say.
- Where and when was this object first recorded outside its country of origin? You want a name, place and date, backed by a document.
- Can you share copies of the provenance documents? Redacted names are sometimes reasonable for privacy; refusing to share anything is not.
- Was it exported with a permit? If not, what shows it left before any restriction applied?
- Which stolen-art databases did you check, and when?
- Has it been restored, repaired or reassembled? Ask for a written condition report.
- What exactly does your guarantee cover, for how long, and what is the remedy?
- Will it be shipped with documents describing it accurately for customs?
Provenance documents: what each one actually proves
Sellers often present a stack of paper. Each piece answers a different question, and some answer very little. Use this table to weigh what you're given.
| Document | What it can show | Limits |
|---|---|---|
| Export permit or license from the source country | The country of origin authorized export | Must clearly match the object. Check the description and photos. |
| Dated auction catalog entry | The object was on the market at a known date and place | Strong if the catalog is real and the photo matches. Catalogs can be cited without the object matching. |
| Dated invoice or receipt from an earlier sale | A transaction occurred | Only as good as the description; vague invoices ("one lamp") prove little. |
| Publication in a book, journal or exhibition catalog | The object was known at that date | Strong evidence of date, if the object is clearly identifiable. |
| Dated photograph in an old collection | The object existed in that setting at that time | Needs evidence the date is genuine. |
| Old collection labels or inventory numbers | Supports a collection history | Labels are easy to fake or move. Use as support, not proof. |
| Stolen-art database search certificate | The object wasn't registered as stolen at the time of search | Looted objects were never registered, so a clean search doesn't prove lawful origin. |
| Scientific test report (e.g. thermoluminescence for ceramics) | Evidence relating to age of the material tested | Says nothing about legal export or title. Tests can be misapplied or sampled from an old part of a pastiche. |
| Dealer's certificate of authenticity | The seller's opinion and guarantee | Worth only as much as the dealer standing behind it. Not an export document. |
| Signed declaration of prior ownership | A person's statement | Weak on its own. Valuable when backed by the documents above. |
The strongest files combine independent documents that agree with each other and with the object. For building your own records after purchase, see How to document provenance for a collection, and for the bigger picture, why ownership history matters.
A practical personal standard is to buy only objects with documents placing them outside their source country before 1970, or with a lawful export after that. It's the benchmark many museums use, and it screens out most material with no traceable history.
Guarantees: what to look for
- Covers authenticity (the object is what it's described as, including period and culture).
- Covers title (the dealer had the right to sell it, and it isn't stolen or unlawfully exported).
- Has no short expiry. Problems with antiquities can surface years later.
- States a clear remedy, such as a full refund of the purchase price.
- Is written and signed, and attached to the invoice.
- The invoice itself names the object precisely, with dimensions and a photo.
Buying at auction and online marketplaces
Major auction houses publish terms of sale that set out what they guarantee and for how long. Read them; they differ, and some guarantees are narrower than buyers expect. Our guide on reading an auction lot description explains the wording.
General online marketplaces are harder. Most restrict antiquities and cultural property, and many prohibit certain categories altogether, such as human remains, items from protected land, and objects without documentation of lawful export. Policies vary between platforms and change over time, so read the current restricted-items policy before you bid. A listing being live is not evidence that it complies. On any platform, apply the same questions you'd ask a gallery: provenance, documents, guarantee.
Red flags that should end the conversation
- Provenance described only as "old European collection," "private collection," or "by descent" with no names, dates or documents.
- The dealer won't put answers in writing.
- Pressure to buy quickly, or a "special price if you decide today."
- Many similar objects with the same vague provenance, especially from a region affected by conflict or known looting.
- Fresh soil, encrustation or unconserved condition on an object said to have been in a collection for decades.
- Suggestions to declare the item as a replica, a decorative object, or a low value for shipping.
- Certificates from organizations you can't find or verify.
- Payment requested only by untraceable methods.
If a seller proposes labeling an antiquity as something it isn't for customs, stop. That's a false declaration, and it tells you how they treat every other rule.
Keep a buying file
For every purchase keep the listing, all correspondence, the invoice, guarantee, provenance copies, photos at arrival, and any database search records. Store originals in archival sleeves and a box away from the objects themselves, and keep scanned copies elsewhere.
Frequently asked questions
Is a certificate of authenticity enough?
No. A certificate of authenticity is the seller's opinion and guarantee. It says nothing reliable about lawful export or title, and it's only as good as the business behind it. Ask for the underlying provenance documents.
What does "ex old private collection" mean?
On its own, very little. It suggests the object was previously owned, but without names, dates and documents it can't be checked. Treat it as a request for more information, not as provenance.
Are trade association members always trustworthy?
Membership is a good sign because associations typically have codes of ethics and complaint procedures, but it's not a guarantee. Still ask the same questions and require the same documents.
Does a clean stolen-art database search mean an object is legal?
No. Databases list objects reported as stolen. Objects looted from unrecorded sites were never registered, so a clean search can't show lawful origin. It's one check among several.
Should I buy antiquities on general online marketplaces?
Be very careful. Many platforms restrict or prohibit antiquities and cultural property, and listings vary widely in quality. Read the platform's current policy and apply the same documentation standards you would at a gallery.
The bottom line
Reputable dealers make documentation easy to see and guarantees easy to understand. If you have to pry for basic information, or the story is doing all the work, the object isn't for you. Ask in writing, weigh each document for what it can actually prove, insist on a guarantee covering both authenticity and title, and keep a complete file. That approach costs you a few attractive objects and saves you from the expensive ones.