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.
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.
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.
The available evidence is insufficient to render an opinion. The item may be resubmitted with additional provenance or exemplars.
The signature or item does not match the hand or characteristics of the named subject. No certificate is issued.
Every item is reviewed in our New York office by a senior authenticator. No remote opinions, no machine signatures, no exceptions.
Items are photographed from multiple angles before any opinion is rendered. Those photographs are stored permanently and reproduced on the verification page.
A written opinion is issued and signed by the examiner who held the piece. Certificate numbers are unique and cannot be reissued or transferred.
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.
First editions, inscribed copies, presentation copies, association copies, and signed limited editions.
Inscribed portraits, publicity stills, press photographs, signed prints, and dedicated images.
Holograph drafts, typescripts with handwritten edits, signed contracts, annotated scripts, and working papers.
Holograph and typed correspondence, signed postal cards, fan-mail responses, and dedicated greeting cards.
Touchstone works exclusively with the book and manuscript trade — auction houses, established dealers, booksellers, gallery owners, and institutional clients submitting on a volume basis.