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Have a Muhammad Ali autograph in your collection that you want to have authenticated?  Have one you're looking to sell?  More often than not, at auction, signatures that have been authenticated by reputable third parties, sell for higher prices than those without.

How it works

This is a physical or in-hand examination used in conjunction with the Quick Opinion Service.  

Step 1 - Fill out the Quote Request form at the bottom of this page to receive an exact price quote for your item.


Step 2 - Send a photo of your item to for a Quick Review.  If your item comes back 'Most likely authentic' or if you have previously submitted the item in question, continue to step 3.


Step 3 - Send your item to for the in-hand evaluation.  Once your item passes the physical portion of the review, you will receive a Letter of Authenticity depicting the passed signature and it will be added to the Online Database with a unique registration number that can be accessed at any time. 

AALOA Sample copy 1.jpg

Sample image of LOA

Cert Check Page Sample.jpg

Sample image of Online Database page

Authentication Fees

Muhammad Ali Signature - $50

Vintage / Modern Cassius Clay - $75

Muhammad Ali AKA Cassius Clay (Dual Signed) - $75

Multiple items on a single order will receive discounted rates.

Authentication Quote Request Form

To get an exact quote to authenticate your item, please fill out and submit the form below.

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