Philatelic Stamp Authentication and Grading, Inc., was formed in early 2009 by noted U.S. Classics Expert, J. Randall Shoemaker. With his 22 years experience in professional expertizing and grading and being the Founder of PSE, his experience in this field is vast. Under his guidance, PSAG has put together a most impressive committee of Experts, technology and innovation. It is our goal to provide you with the highest level of expertise, customer service, responsiveness and value for your expertizing dollar. This website will be continually evolving into an interactive site that will display information historically unavailable to most collectors. Please return regularly and see how we can further serve you.