Due to primitive technology and packaging issues, many of the year sets minted during the 50s and 60s are tarnished with unsightly toning, making high quality year sets from this time period a true numismatic rarity. These 1955 to 1963 Proof Year Sets each include a Lincoln Cent, a Jefferson Nickel, a Roosevelt Dime, a Washington Quarter, and a Franklin Half Dollar, all graded a Superb Gem Proof 68 by NGC. Each of the 45 coins included in this collection of years sets has a Proof 68 population of 1.1% or less of its respective mintage, making these sets true Condition Rarities.