Authentication · Grading · Encapsulation

The permanent record of an object’s worth.

Meridian authenticates and grades rare coins, paper currency, trading cards and collectibles. Every item is examined by two specialists, sealed in a tamper-evident holder, and issued a certificate that stays verifiable for the life of the object.

Insured intake · 12-angle imaging · Independent of the trade

Fig. 01 — Reeded edge, 187820× magnification
1,480,000
Items graded
27 yrs
Continuous operation
4
Categories, one standard
100%
Certificates verifiable

What we grade

Four categories. One standard of proof.

Each category has its own bench, its own instruments and its own published scale — but the same rule applies everywhere: nothing is authenticated on the word of one examiner.

Coins

01

Metallurgical assay, die and variety attribution, and a full surface examination under 20× magnification before any grade is assigned.

  • Metal composition and specific gravity
  • Die state and variety attribution
  • Surface, strike and luster assessment
  • Cleaning, tooling and artificial toning
Scale
Sheldon 1–70
Starting at
$32

Paper currency

02

Notes are examined for paper stock, intaglio engraving and plate position, then checked for restoration, pressing and repairs under UV.

  • Paper fiber and watermark analysis
  • Intaglio and plate verification
  • Signature and serial authentication
  • UV screening for repairs and washing
Scale
1–70, EPQ
Starting at
$28

Trading cards

03

Centering, corners, edges and surface are measured independently, with all four sub-grades printed on the certificate.

  • Centering measured to the tenth
  • Corner and edge wear mapping
  • Surface, print line and gloss
  • Trim, recolour and reprint detection
Scale
1–10, half points
Starting at
$22

Collectibles

04

Autographs, watches, medals and small ephemera, authenticated through provenance research and physical comparison to known reference examples.

  • Provenance and chain of ownership
  • Autograph comparison to exemplars
  • Movement, case and material dating
  • Restoration and replacement parts
Scale
Authenticity + condition class
Starting at
$45

Chain of custody

Six stages, and a record at every one.

From the moment a parcel is opened to the moment it is sealed, each stage is signed, timestamped and visible to you in your account.

  1. I

    Intake

    Items arrive under our written shipping protocol, insured at declared value from the moment they leave you.

  2. II

    Logging & imaging

    Twelve-angle photography before the object is touched. A submission number is issued the same working day.

  3. III

    Authentication

    Two specialists review independently — metal, paper, ink, print or movement. Neither sees the other's notes.

  4. IV

    Grading

    The grade is assigned on the published scale for the category, with every defect and notation recorded.

  5. V

    Encapsulation

    Ultrasonically sealed holder, tamper-evident band, certificate number etched into the label.

  6. VI

    Return & register

    Insured return shipping, and permanent entry in the Meridian register that any buyer can verify.

Cards
Fig. 02 — Holographic foil, register dots at 40×
Currency
Fig. 03 — Intaglio ink on cotton paper, raking light
Collectibles
Fig. 04 — Movement and case, brass and blued steel

Published standards

A grade is an opinion. We publish the reasoning.

Every certificate states the scale used, the defects found and the notations that qualify the grade. Nothing is implied and nothing is left unstated — a collector, an insurer and a buyer should be able to read the same document and reach the same conclusion.

What we never do

  • Grade from photographs alone
  • Assign a grade without attribution
  • Repair, clean or restore an item
  • Take a position in anything we grade
Category
Scale
Highest grade
Notations
Coins
Sheldon 1–70
MS-70
RD · RB · BN · FB · FS · CAM · DCAM
Currency
1–70 with EPQ
70 EPQ
EPQ · PPQ · Apparent · Net-graded
Trading cards
1–10, half points
10 — Gem Mint
Centering · Corners · Edges · Surface
Collectibles
Authenticity + class
Class I — Original
Restored · Rebacked · Altered · Assembled

Full scale definitions are printed on the reverse of every certificate and available from the intake desk on request.

Schedule of fees

Transparency from the first invoice.

Fees are charged per item, in the currency shown, and confirmed before your shipment is logged. Nothing is invoiced after the fact.

Standard

$32per item

20 business days

  • Declared value up to $3,000
  • Two-examiner review
  • Tamper-evident holder
  • Certificate and register entry
Submit at Standard

Express

Most used
$68per item

10 business days

  • Declared value up to $10,000
  • Priority bench slot
  • Return shipping included
  • Certificate and register entry
Submit at Express

Walkthrough

$140per item

3 business days

  • Declared value up to $60,000
  • Same-week encapsulation
  • Courier return, signature required
  • Direct line to your examiner
Submit at Walkthrough
Oversize holder+$12
High-value review, over $25,000+$60
Authenticity report, no holder$45
Reholder with new certificate$15

25 items or more — from $18 per item, 25 business days. Contact the intake desk for a schedule.

Public register

Anyone can check the certificate.

Every Meridian certificate carries a number etched into its holder and printed on the document. Enter it here to see the item, the grade, the notations and the date of encapsulation — no account required.

Register entries are permanent and never re-issued

Example certificateVerified

MG-19980142

1878 Morgan Silver Dollar

Philadelphia mint · 8 Tailfeathers variety

Grade
MS-65
Surface
Brilliant
Encapsulated
14 Mar 2024
Examiners
Two, independent

Grading notes

Full luster, unbroken cartwheel. Reverse field shows one hairline from handling, no toning or dipping. Original surfaces.

Why Meridian

The value is in what we’re willing to sign.

“We are not selling certainty. We are selling a method, and the discipline to repeat it the same way on the ten-thousandth object as on the first.”

E. Harrow — Head of Numismatics, since 2001

Two-examiner rule

Authentication and grade are signed by separate specialists who never see each other's findings first.

$50,000 transit cover

Every inbound and return shipment is insured at declared value through our underwriter.

90-day accuracy guarantee

If a grade fails on re-examination, we re-holder and re-grade at no charge, once.

Independent of the trade

Meridian holds no inventory and takes no position in any item we examine.

Begin

Open an account and start a submission today.

Describe the items, choose a service level and receive your intake number and shipping instructions immediately. No appointment, no minimum.