|Mint Mark:||O - New Orleans|
|Metal Content:||0.1808 troy oz|
This example has been graded Extra Fine Details - Improperly Cleaned by NGC. The famous Huge O quarter has a crude oversized mintmark. Experts speculate that a reverse die was mistakenly shipped to New Orleans without the mintmark, and a worker at the Southern facility hand-engraved the O onto the exergue of the reverse die.