Skip to content
Known Atlas

A private network for graded coins and cards

Find the known examples. Reach the people who have them.

Most rare slabs never come up for sale. Known Atlas lets collectors privately reach the owners of specific graded coins and cards, and lets owners hear only the offers worth hearing.

Join the waitlistHow it works

Invite-only concierge pilot, starting in the UK. Free to join.

Example atlas entry

1916-D Mercury Dime

PCGS · MS65 FB

Verified holders
3
Hunters looking
17
Owner identities
Never shown
Illustrative. Public pages show counts only: never names, locations or collections.

Two sides of the same atlas

Owners stay in control of what reaches them. Hunters finally have a way in.

For owners

  1. Claim the slabs you own

    Add a slab by its grader and cert number, then verify it with a quick photo that shows a one-time code. Nothing is reachable until you opt in.

  2. Set a silent ask

    Tell us the price you would sell at. Only you ever see it.

  3. Hear only serious offers

    Offers at or above your silent ask reach you straight away. Everything else waits quietly in a weekly summary.

  4. See how wanted your items are

    Know how many hunters are looking for each item, even if you never sell.

For hunters

  1. Add your wants

    Pick the coins and cards you are hunting, with the graders and minimum grades you accept.

  2. See what is reachable

    Each catalog page shows how many verified examples have owners on Known Atlas.

  3. Make a binding offer

    Offer on a specific example. The owner can accept, decline or counter.

  4. We handle the introduction

    During the pilot our concierge team coordinates every accepted deal.

Privacy is the product

Known Atlas exists to make rare items reachable without making their owners visible.

  • Anonymous by default

    Others see a handle at most. Owner identities are never revealed before a deal.

  • Counts, not collections

    Public pages show how many examples are reachable, never who holds them or where.

  • Photos scrubbed

    Location and camera data is removed from every verification photo, and those photos are never public.

  • No meetups

    Deals never involve meeting in person. Items travel by insured shipping.

  • We never hold your money

    Known Atlas does not hold buyers' funds. Payment goes directly to the seller or through a regulated partner.

  • Always current

    Owners regularly re-confirm they still hold an item, so the atlas never goes stale.

Join the waitlist

We are starting with a small, invite-only concierge pilot. Tell us a little about yourself and we will be in touch personally.

Which describes you best?
Interested in

Choose at least one.

No cert numbers or personal details needed.

We use your details only to run the waitlist and the pilot. Read our privacy notice.

Questions

Which items are supported?

Graded coins from PCGS and NGC, and graded cards from PSA, CGC, BGS and SGC. Every item is identified by its grader and certification number. We are also measuring demand for CGS UK.

Does joining cost anything?

No. Joining the waitlist and the pilot is free.

Will anyone know what I own?

No. We only ever show counts, such as how many verified examples of an item are reachable. Your identity and your collection stay private.

Is this a marketplace?

Not in the usual sense. Nothing is listed for sale. Owners decide privately which offers they want to hear, and nothing happens without their agreement.

Where is Known Atlas available?

The pilot starts in the UK, with offers in GBP, USD and EUR.