Understanding UNC, XF, AU, and MS: Grades of US Coins
If you buy coins long enough, you eventually stop asking what a coin is and start asking what grade it is. That shift is where the alphabet soup begins. UNC, XF, AU, MS, and all the numbers that often cling to them can feel mysterious at first, but they are really a language for describing wear, eye appeal, and how a coin handled the years. In practice, those grades matter because they change expectations. A “near mint” coin and a “mint state” coin might look similar in