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SERVICES
Autograph Authentication & Grading Services
ASM is the world's largest and most trustworthy signature authentication service. ASM authenticates a wide range of autographs, from sports to history and entertainment, with over 35 million objects certified. ASM continues to provide a service that collectors choose, combining decades of knowledge with cutting-edge authentication processes and an enthusiasm for the field.
Autograph Encapsulation Process
Our tamper-evident, sonically-sealed holders are a great way to safely store or display your special signatures.
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