NGC Mint State 66 - Clean lustrous high grade GEM+. Original no problem coin with a touch of light toning on the outer edges. Battle of Antietam Anniversary. Struck to commemorate the 75th anniversary of the famous Civil War battle to stop Lee's invasion of Maryland. The obverse has the opposing generals McClellan and Lee. The reverse features the Burnside Bridge an important tactical objective. The Battle of Antietam, on Sept. 17 1862 was one of the bloodiest single day battles of the war, with more than 23,000 men killed, wounded or missing. Low Mintage of only 18,028