Contact

Collectibles Authority serves collectors, dealers, appraisers, researchers, and estate professionals seeking reference information on the United States collectibles market. This page describes how to direct inquiries to the appropriate channel, what geographic scope the reference covers, and what information produces the most efficient response when submitting a message.

Additional contact options

Inquiries that do not require direct correspondence can often be resolved by consulting the existing reference structure on this site. The sections below identify the most relevant resources by inquiry type.

• Valuation questions — The Collectibles Valuation and Professional Appraisal Services pages describe how valuation is conducted, what credentials appraisers hold, and the difference between formal appraisal and informal price estimation.
• Authentication and grading questions — The Authentication and Certification and Collectibles Grading Standards pages cover third-party certification services, grading scales, and recognized organizations such as Professional Sports Authenticator (PSA) and Numismatic Guaranty Company (NGC).
• Buying and selling questions — The Buying Collectibles, Selling Collectibles, and Consignment vs Direct Sale pages address transaction structures and dealer standards.
• Tax and legal questions — The Collectibles and Taxes and Intellectual Property in Collectibles pages outline the regulatory and legal frameworks that govern ownership and transfer.
• Insurance questions — The Collectibles Insurance page references guidance from the Insurance Information Institute on scheduled property coverage and homeowner policy limits.

For frequently asked questions across the full collectibles landscape, the Collectibles Frequently Asked Questions page addresses the most common reference inquiries in structured form.

How to reach this office

Direct correspondence is accepted through the contact form hosted on this domain. The form is the primary intake channel for all written inquiries. Email correspondence is not published as a public address to prevent automated solicitation.

Response timelines depend on inquiry category:

1. General reference questions — acknowledged as processing allows; substantive response as processing allows.
2. Content correction requests — reviewed as processing allows; corrections to factual content are prioritized and processed before additions or expansions.
3. Professional or institutional inquiries — dealer associations, appraisal firms, auction houses, and collector organizations may identify their affiliation in the message body; these inquiries are routed separately and receive a response as processing allows.
4. Press or research inquiries — journalists, academic researchers, and market analysts should indicate their publication or institution and the scope of their request; response as processing allows.

Inquiries submitted without sufficient context may receive a response directing the sender to the most applicable reference page rather than a direct answer. This is not a refusal — it reflects the reference function of the site.

Service area covered

Collectibles Authority operates at national scope within the United States. Reference content addresses federal regulatory frameworks, nationally recognized grading standards, and market structures that apply across all 50 states. State-specific tax treatment — such as capital gains rules or sales tax on collectibles transactions, which vary across jurisdictions — is noted where relevant but not covered as primary content.

The site does not provide geographic-specific dealer networks, local auction house providers, or regional show calendars. For dealer and organization resources, the Finding Reputable Dealers and Collector Clubs and Organizations pages provide sector-level navigation. The Collectibles Shows and Conventions page covers event structures at the national level.

International collecting markets and cross-border transaction rules fall outside the primary scope of this reference, though certain pages — notably Provenance and Documentation and Militaria and Historical Artifacts — address import and export considerations where they intersect with US law.

What to include in your message

Messages that include specific context receive substantive responses. The following breakdown identifies what each inquiry type should contain:

Content corrections and factual disputes
- The specific page URL or title containing the disputed content
- The claim in question, quoted verbatim
- The named public source that contradicts the claim (e.g., a statute citation, a named government agency document, or a recognized industry organization's published standard)

Research and data inquiries
- The topic category (e.g., coins, sports cards, fine art)
- The nature of the data being sought — market valuation, regulatory framework, grading criteria, or other
- The intended use (academic, journalistic, professional)

Professional and institutional inquiries
- Organization name and role in the collectibles sector
- Nature of the inquiry — partnership, content accuracy, or reference documentation

General reference questions
- The collecting category involved
- Whether an existing page has already been consulted
- The specific aspect not addressed by existing content

Messages that consist solely of a general subject line with no supporting detail — such as "question about coins" or "need appraisal info" — will receive a response directing the sender to the most relevant reference page. Appraisal referrals and dealer recommendations are outside the scope of this office; those functions are covered in the Professional Appraisal Services and Finding Reputable Dealers reference pages.

References

• Insurance Information Institute