About Us

Established in 2003 by Stan House and Roger Rumsey, 4 Sharp Corners is the world's largest seller of PSA-graded sports cards. We offer the largest variety and inventory of graded sports cards available anywhere. We cater to collectors of rare, hard-to-find cards that are not commonly graded. We are an excellent source for collectors who are looking to complete their set registry. Anyone looking for that "off the wall" card or the last few cards needed to complete a set can often find what they need with us.

On ebay, we have established a history of unparalleled customer service. Now, on 4sharpcorners.com, collectors can enjoy that same inventory and level of customer service. We hope you enjoy the site and would welcome recommendations for its improvement and for ways we can better serve your collecting needs.