Minted in bronze instead of steel during WWII; sold for $1.7 million in 2010 due to its extreme rarity.
Another bronze error from the same year; one sold for $1 million in 2012.
A few were mistakenly minted in bronze; one example sold for $840,000.
The first year of the Lincoln cent with designer initials VDB on the reverse; one in top condition sold for $117,500.
A rare and highly desirable early pattern coin; an example sold for $172,500.
Known for its low mintage; a high-grade example sold for $158,625.
Extremely rare with only a few known examples; one sold for $336,000.