Authen­ticate, Certify, Grade Your Collection
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Get Authenticated
Lookup your ACG
authenticated collectable.
ACG sticker

Max Verstappen
Signed Red Bull Racing Shirt

Protect the value of your collectibles.
Trust in authenticity. Trust in ACG.
Get Authenticated
Authenticate, Certify, Grade Your Collection
Protect the value of your collectibles.
Trust in authenticity. Trust in ACG.
Image of a racing driver signed shirt
Image of a signed Squid Game Funko POP!
Image of a signed Ronaldinho Barcelona FC shirt
Get Authenticated
Lookup your ACG
authenticated collectable.
ACG sticker

Max Verstappen
Signed Red Bull Racing Shirt

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A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner

Why Grade Your Collectibles?

Ever wonder what your memorabilia is really worth? Our authentication experts transform your prized possessions from cherished items to certified treasures.

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What Is Authentication?

More than just a stamp of approval. It's a scientific journey that verifies your item's origin, history, and genuine value through expert forensic analysis.

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How Does The Process Work?

The precise steps we take:
1. Submit Your Item
2. Expert Examination
3. Possible Verdicts

Find Out More
Lookup An Existing Hologram Number

Verify the authenticity of your collectible by entering the ID number on your hologram sticker into the lookup form below.

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Your Hologram number can be found under your ACG sticker’s QR code.

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Your Hologram number can be found under your ACG sticker’s QR code.

Featured Authen­tications
Cillian Murphy Signed PhotoCillian Murphy Signed Photo
Manny Pacquiao Signed GloveManny Pacquiao Signed Glove
Adam Sandler Signed Funko POP!Adam Sandler Signed Funko POP!
Johnny Depp Signed PhotoJohnny Depp Signed Photo
Tom Hardy Signed PhotoTom Hardy Signed Photo
The Jam All Mod Cons Signed VinylThe Jam All Mod Cons Signed Vinyl
Paul Weller Snap! Signed VinylPaul Weller Snap! Signed Vinyl
Depeche Mode Violator Signed VinylDepeche Mode Violator Signed Vinyl
Lauryn Hill The Score Signed VinylLauryn Hill The Score Signed Vinyl
Jude Bellingham Signed ShirtJude Bellingham Signed Shirt
Bruce Springsteen The Wild, the Innocent & the E Street Shuffle Signed VinylBruce Springsteen The Wild, the Innocent & the E Street Shuffle Signed Vinyl
Denzel Washington Signed PhotoDenzel Washington Signed Photo
Sex Pistols Never Mind the Bollocks, Here's the Sex Pistols Signed VinylSex Pistols Never Mind the Bollocks, Here's the Sex Pistols Signed Vinyl
Thom Yorke OK Computer Signed VinylThom Yorke OK Computer Signed Vinyl
Pierce Brosnan Signed PhotoPierce Brosnan Signed Photo
Tom Hardy Signed Funko POP!Tom Hardy Signed Funko POP!
Noel Gallagher Signed GuitarNoel Gallagher Signed Guitar
Kit Harington Signed Funko POP!Kit Harington Signed Funko POP!
Dr Dre The Chronic Signed VinylDr Dre The Chronic Signed Vinyl
Eurythmics Revenge Signed VinylEurythmics Revenge Signed Vinyl
Lee Jung-jae Signed Funko POP!Lee Jung-jae Signed Funko POP!
Russell Crowe Signed Funko POP!Russell Crowe Signed Funko POP!
John Cena Signed Funko POP!John Cena Signed Funko POP!
The Smiths Strangeways, Here We Come Signed VinylThe Smiths Strangeways, Here We Come Signed Vinyl
Your Trusted
Authentication Partner
Decades of expertise and an unwavering commitment. Credibility you can count on.
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Expert Authentication

Our team of forensic specialists and industry veterans meticulously examine every detail, using advanced techniques to verify authenticity where others see just an item.

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Handled With Respect

Your treasured memories matter. We treat your collectibles with the utmost care, using museum-grade preservation techniques and white-glove handling.

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Easy Submission

Your collectible's journey starts here Upload, pack, and ship. Our secure digital platform guides you through a seamless authentication process. Protecting your treasures, simplified.

Need a Quick Opinion?
1
Submit Your Item
Use the simple online submission form to upload images of your item for the ACG team members to start the formal process
of authentication.
2
Expert Examination
A team of experts will rigorously analyse the autograph, considering factors such as provenance, autograph flow, style, pressure, and much more.
3
The Verdict
The experts will issue one of three verdicts: 'Likely to Pass Full Authentication', 'Unlikely to Pass Full Authentication' or 'Inconclusive'.
Have Something You
Would Like Authenticated?
Start Authentication
Letter Of Authenticity
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Make Your Collectible Even More Desirable
Receive an official ACG Letter of Authenticity. Our in-person examination service provides the highest level of authentication for your collectible.

Upgrade for £19.99
Upgrade
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A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
A Brand logo for an ACG partner
What Our Customers Are Saying
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Andrew Burton
March 18th 2025
Yellow starYellow starYellow starYellow starYellow star
As a serious collector, it's important to know that you have knowledgeable people that can assist you with authenticity. The team at ACG have been helpful with not only purchasing but with certifying items in my collection. People who know their stuff, fair pricing and fast service, what more could you want?
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Matthew Dench
Feb 2nd 2025
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Great to finally have a trustworthy UK company with experts in all fields to authenticate my memorabilia
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John Phillips
22 April 2024
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Efficient and straightforward process, quick turnaround too. Very pleased and grateful for the teams expertise towards authenticating.
Frequently Asked
Questions
Discover answers to our most frequently asked questions, or contact our team directly.
Contact Us

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ACG
Unit 3 Valley Trade Park
S9 5EX
Sheffield
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Quick Links
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Business Hours
Monday - Friday: 9:00am - 5:00pm
We're available to assist you.
01245 526249
©ACG Limited. All Rights Reserved | Company Registration No. 16509460
©ACG Limited.
All Rights Reserved.
Company Registration No. 16509460
Developed by Mass Creations