1920-S Standing Liberty Quarter. MS-65 (NGC). A frosty and luster Gem dusted with pale sandy-silver patina. With a relatively modest mintage of 6,380,000 coins and a high rate of attrition suffered through circulation, the 1920-S is a semi-key date Standing Liberty quarter in the finer Mint State grades. From the Larry H. Miller Collection. From the Larry H. Miller Collection.