; (8) since its opening in 1959, the Naismith Memorial Basketball Hall of Fame is home to the largest collection of basketball memorabilia in the world, including more than 30,000 3-dimensional objects, 800,000 photographs, and 1,500,000 documents; (9) the Naismith Memorial Basketball Hall of Fame welcomes more than 6,000,000 visitors interested in discovering the rich history of the game through its stories, its personalities, and its most celebrated moments; (10) the Naismith Memorial Basketball Hall of Fame reaches over 7,000,000 Americans through its educational programs, events, exhibits, social media, and its interactive website; (11) the customized educational programs of the Naismith Memorial Basketball Hall of Fame use basketball to teach young students around the world the important lessons on a variety of topics, including financial literacy, mathematics, civil rights, leadership of character, women’s and men’s history, and geography; and (12) the Naismith Memorial Basketball Hall of Fame will lead the celebration of 60th anniversary of basketball and will partner with a select group of constituents, including the National Basketball Association, the National Collegiate Athletic Association, and USA Basketball in commemorating the game throughout the 2019–2020 basketball season. 3. Coin specifications (a) Denominations The Secretary of the Treasury (hereafter in this Act referred to as the Secretary ) shall mint and issue the following coins: (1) $5 gold coins Not more than 50,000 $5 coins, which shall— (A) weigh 8.359 grams; (B) be struck on a planchet having a diameter of 0.850 inches; and (C) contain 90 percent gold and 10 percent alloy. (2) $1 silver coins Not more than 400,000 $1 coins, which shall— (A) weigh 26.73 grams; (B) be struck on a planchet having a diameter of 1.500 inches; and (C) contain not less than 90 percent silver. (3) Half-dollar clad coins Not more than 750,000 half-dollar coins which shall— (A) weigh 11.34 grams; (B) be struck on a planchet having a diameter of 1.205 inches