01
Struck in 40% silver, this proof coin is highly collectible, valued for its brilliant finish and limited mintage.
02
Features a prominent minting error like double die or off-center strikes, making it worth over $300,000 in rare cases.
03
An anomaly missing the mintmark, this unique error boosts its value significantly among collectors, fetching high auction prices.
04
Recognized for its frosted design and brilliant mirrors, this quarter has surprising value in perfect condition, exceeding $300,000.
05
Known for doubled lettering on the obverse, this rare error variety captivates collectors and commands high market values.
06
Features a sharp, clear font style on the reverse, making it more desirable and valuable in pristine proof grades.
07
Minting errors where the coin is struck on a foreign or incorrect metal planchet make it exceptionally rare and valuable.
08
Uncirculated 40% silver quarters with perfect luster and no wear are highly sought after, fetching top dollar at auctions.