PSAG, Inc. is a leading stamp authentication and grading company based in Bellefonte, PA. With a team of highly experienced experts specializing in United States and Canada, PSAG offers top-notch expertise, customer service, and value for collectors seeking professional expertizing and grading services.
Founded in 2009 by renowned U.S. Classics Expert J. Randall Shoemaker, PSAG is committed to taking stamp authentication and grading to the next level. With a focus on innovation and technology, PSAG provides collectors with historically unavailable information, tutorial videos, and a wealth of resources to enhance their hobby.
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