This is the definitive reference for attributing 1878 S (San Francisco) VAM Morgan silver dollar varieties! Authored by Leroy C. Van Allen who is considered the father of Morgan silver dollars with his opus, "The Comprehensive Catalog and Encyclopedia of Morgan & Peace Silver Dollars, and edited by noted silver dollar expert, Michael S. Fey, Ph.D., this book has extensive descriptions and photos of the known 1878 S die pair varieties that were struck by the U.S. mint. Common varieties as well as rare die varieties worth substantial premiums are listed in this book and easy to attribute. It's quite possible that one of your silver dollars currently worth about $30 in 2024 could be a rare die variety worth thousands of dollars. You would not know unless you compared your silver dollar to the pictures given in this book. A must have reference for collectors, investors and dealers in silver dollars. Morgan silver dollars are perhaps the most popular and collected type coin in numismatics today.