Verify a Certificate of Authenticity

Enter your certificate number.

Confirm the item in your possession against our records. Each certificate corresponds to an item examined in person, photographed, and reviewed by a senior authenticator.

Certificate Number
Your number is printed on the front of the certificate and on the tamper-evident label affixed to the item. It is a six-digit number, e.g. 948213.

Every certificate carries one of three opinions.

Genuine

Our examiner is of the considered opinion that the item is authentic and signed by the named subject. The certificate is on file and active.

Inconclusive

The available evidence is insufficient to render an opinion. The item may be resubmitted with additional provenance or exemplars.

Not Genuine

The signature or item does not match the hand or characteristics of the named subject. No certificate is issued.

Three principles behind every Touchstone certificate.

1

In-person examination

Every item is reviewed in our New York office by a senior authenticator. No remote opinions, no machine signatures, no exceptions.

2

Photographic record

Items are photographed from multiple angles before any opinion is rendered. Those photographs are stored permanently and reproduced on the verification page.

3

Signed written opinion

A written opinion is issued and signed by the examiner who held the piece. Certificate numbers are unique and cannot be reissued or transferred.

Books, photographs, manuscripts, and letters.

Touchstone is a paper-only office. We do not examine three-dimensional memorabilia, signed apparel, or game-used equipment. Within our specialty we are exhaustive — across signers, periods, and substrates.

Signed Books

First editions, inscribed copies, presentation copies, association copies, and signed limited editions.

Signed Photographs

Inscribed portraits, publicity stills, press photographs, signed prints, and dedicated images.

Manuscripts

Holograph drafts, typescripts with handwritten edits, signed contracts, annotated scripts, and working papers.

Letters

Holograph and typed correspondence, signed postal cards, fan-mail responses, and dedicated greeting cards.

For the trade

We do not accept retail submissions.

Touchstone works exclusively with the book and manuscript trade — auction houses, established dealers, booksellers, gallery owners, and institutional clients submitting on a volume basis.

Open a Trade Account → Speak with the Office