A rare key date with a low mintage of 436,800; any noticeable errors or high-grade examples can significantly increase its value.
Another key da te with a mintage of 408,000, making it rare and valuable, especially with errors or in high-grade condition.
Features significant doubling on the obverse, particularly on "IN GOD WE TRUST" and the date, making it a rare and sought-after error coin.
Similar to the 1950-D/S, but with an "S" stamped over a "D," another rare over-mintmark error that is highly collectible.
Known for noticeable doubling on the obverse inscriptions, a rare error that can fetch high prices, especially in higher grades.
Some 1965 quarters were accidentally struck on silver planchets instead of the intended copper-nickel clad, making them rare and valuable.