David C. Harper 
2012 U.S. Coin Digest: Bullion Coinage 

This easy-to-search pricing and identification download is solely focused on U.S bullion coins. In this single source you get up-to-date values, detailed illustrations, and characteristics about circulating and non-circulating bullion coins. Pulled directly from 2012 U.S. Coin Digest, the most complete and detailed color guide to U.S. coins, this affordable download allows you to focus your attention strictly on bullion.