; (B) have a diameter of 0.850 inches; and (C) contain 90 percent gold and 10 percent alloy. (2) $1 silver coins Not more than 350,000 $1 coins, which shall— (A) weigh 26.73 grams; (B) have a diameter of 1.500 inches; and (C) contain not less than 90 percent silver. (b) Legal tender The coins minted under this Act shall be legal tender, as provided in section 5103 of title 31, United States Code. (c) Numismatic items For purposes of sections 5134 and 5136 of title 31, United States Code, all coins minted under this Act shall be considered to be numismatic items. 4. Design of coins (a) Design requirements (1) In general The design of the coins minted under this Act shall be emblematic of the life and legacy of Muhammad Ali. (2) Design and inscriptions On each coin minted under this Act there shall be— (A) a designation of the value of the coin; (B) an inscription of the year 2020; and (C) inscriptions of the words Liberty , In God We Trust , United States of America , and E Pluribus Unum . (b) Selection The design for the coins minted under this Act shall be— (1) selected by the Secretary after consultation with the Muhammad Ali Center; and (2) reviewed by the Citizens Coinage Advisory Committee. 5. Issuance of coins (a) Quality of coins Coins minted under this Act shall be issued in uncirculated and proof qualities. (b) Mint facility Only 1 facility of the United States Mint may be used to strike any particular quality of the coins minted under this Act. (c) Period for issuance The Secretary may issue coins minted under this Act only during the 1-year period beginning on January 1, 2020. 6. Sale of coins (a) Sale price The coins issued under this Act shall be sold by the Secretary at a price equal to the sum of— (1) the face value of the coins; (2) the surcharge provided in section 7(a) with respect to such coins