Editors Note: This Five-Piece Set of No S Proof Coins is featured in the upcoming 2010 April-May Milwaukee, WI CSNS US Coin Auction #1139.
1968 No S Dime PR69 NGC. The first year of proof set production at San Francisco inaugurated this series of missing-mintmark rarities, and not surprisingly, the smallest-diameter denomination, the dime, was the subject. This mildly contrasted specimen has minimal patina over strong mirrors.
1970 No S Dime PR68 Cameo NGC. Just two years later, another No S dime appeared in a relative handful of proof sets, attracting considerable attention. This moderately contrasted example of the 1970 No S variety has attractive frost-and-mirrors and little toning.
1971 No S Nickel PR68 Cameo NGC. While a No S proof quarter variety remains undiscovered, if it exists at all, the 1971 proof nickel with missing mintmark has become a collector favorite for its relatively large size. This captivating specimen is carefully preserved with an attractive cameo effect and exacting detail.
1983 No S Dime PR69 Ultra Cameo NGC. A virtually flawless representative of the most recent No S proof dime variety, practically black-and-white with gorgeous frost and smooth mirrors. Boldly detailed and impressive.
1990 No S Cent PR68 Red Ultra Cameo NGC. The first and likely only No S cent variety, since changes to Mint procedures have made future missing mintmark varieties far less likely. This specimen has bright copper-gold surfaces with thickly frosted devices and gleaming mirrored fields. A small planchet flaw is noted in the field below the Lincoln Memorial.