bookofradeluxegratis.review is an online database that provides both numismatic and intrinsic coin values. In addition we have created some great tools and written many. How to Find The Value Of Old Coins. Coin collecting has been described as the " hobby of kings." People collect coins for fun, for short-time gain from quick. The NGC Coin Price Guide is a complete catalog of coin values for US and World coins from to date, compiled from a variety of numismatic sources.