Global Authentics

How Autograph Authentication Works

Physical Analyses
Each item undergoes the following review:

Side-By-Side Comparisons
Ink/Medium Analysis
Autograph Structure
Object Evaluation

Global Authentics Label
A tamper evident label bearing a unique serial number is affixed to the item or the Letter of Authenticity.

Letter of Authenticity
A comprehensive letter describing your authenticated item and characteristics of the examination.

Additionally you will find:
A high quality color photograph of the item
Matching Certification Number
Signed by the authenticator

Certificate of Authenticity
Each authenticated item is also accompanied by a Certificate of Authenticity (COA) that displays the unique matching certification number for that item.

Online Database Documentation
After each item has been authenticated, the results can be reviewed using the CertCheck feature on our website.

The Information page will exhibit:
Photograph of the item and autograph
Authentication date
Authentication details

Non-Authenticated & Inconclusive Items
If an item cannot be authenticated or is found inconsistent by our experts, a letter of explanation can be provided for an additional fee based on the item. You can call 949-366-9500 or email at


Global Authentics LLC
2173 Salk Avenue / Suite 250
Carlsbad, CA 92008


Phone: 949-366-9500 or
Phone 2: 1-949-294-7211

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