Here`s a low-mintage 90% silver quarter that`s often overlooked by collectors. With only 5.5 million minted, it is the third lowest-mintage quarter of the 1940s. It was struck the same year Captain Chuck Yeager broke the sound barrier and Jackie Robinson broke the color barrier. Yet these silver quarters were not included in that year`s Mint Sets. And when the price of silver rose in the 1960s and `70s to reach more than $50 an ounce by January 1980, many of these early date silver quarters were lost to the melting pots. So for collectors hoping to complete a date and mint mark set, this is your opportunity to get a nice original 1947-S quarter.