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  • Professional Authentication Services & Standards Co. LLC
    Professional Authentication Services & Standards Co. LLC
    (186) 672-7726
    344 Rt 101 West, 03110  Bedford

    We provide authentication and grading services for a variety of historical autographs, letters, manuscripts, documents, photographs and rare signed books. Additionally we provide encapsulation, scoring and grading services for stock certificates, bonds, checks and autographs. â??We are thrilled to…