1912-S Liberty Nickel. MS-66 (PCGS).;A historic key date issue at an exceptional level of preservation. Indeed, the surfaces are overall pristine with a full endowment of soft, billowy satin luster. Beautifully toned, as well, both sides are veiled in blended powder blue, pale pink and silver-apricot iridescence. A bold to sharp strike rounds out a truly impressive list of attributes for this premium quality example. The premier San Francisco Mint nickel five-cent piece, and the only one of the Liberty design type, the 1912-S is also a key date issue with just 238,000 pieces produced.