HALLMARK
PREMIUM SPORTS CARD PRESERVATION
Entrust your valuable collection to our expert authentication and preservation services. Meticulous evaluation by industry specialists.
CERTIFICATE AUTHENTICATION
Verify the authenticity of any Hallmark-graded card by entering the certificate number below.
Secure Certificate Verification
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OUR PREMIUM SERVICES
We offer comprehensive authentication and preservation services to protect and enhance the value of your collection.
EXPERT GRADING
Our team of industry experts meticulously evaluates each card using our proprietary 10-point grading system, ensuring accurate and consistent results.
AUTHENTICATION
Each card undergoes rigorous authentication to verify its legitimacy, protecting your investment from counterfeits and reproductions.
PRESERVATION
We encapsulate your cards in museum-quality, tamper-evident cases designed to protect against environmental damage and preserve condition.
WHY COLLECTORS TRUST HALLMARK
For over a decade, serious collectors have trusted Hallmark with their most valuable cards. Our commitment to excellence sets us apart.
EXPERT AUTHENTICATION
Our team includes former athletes, industry veterans, and authentication specialists with decades of combined experience.
EFFICIENT PROCESS
Our streamlined process ensures quick turnaround times without compromising on the meticulous attention each card deserves.
ADVANCED TECHNOLOGY
We utilize state-of-the-art imaging and analysis tools to detect even the most subtle details and ensure accurate grading.
DEDICATED SUPPORT
Our concierge-level customer service team is available to assist with any questions or concerns throughout the entire process.
WHAT OUR CLIENTS SAY
"I've been collecting cards for over 20 years, and Hallmark's attention to detail is unmatched. Their authentication process gave me complete confidence in my collection's value."
Michael Thompson
Serious Collector since 1998