Hello collectors, I need to know a good, solid, website or catalog that tells you coin values. I have recently been told that often PCGS price guide is underpriced or overpriced, and that probably also applies to the NGC price guide. I also know that the Redbook prices are outdated. Ive heard about Graysheet, but I dont know where to get one. Thanks guys, a good price guide will help me alot in the future.