The 1855-O Half Dollar boasts the second largest mintage of the 1853-1855 With Arrows type. As a result, it is plentiful in virtually any grade, including most of the Mint State levels. Scores are available in a range of grades from MS62 to MS64. Even Gems can be obtained easily. For the connoisseurs of extreme quality, it is possible to obtain examples of this date in MS67. In any grade, the key is to find an example that featrures a bold strike, as some show weakness on several or many of the stars.