; and (B) Mary Jackson. (4) One gold medal in recognition of all women who served as computers, mathematicians, and engineers at NACA and NASA from the 1930s to the 1970s. (b) Design and striking For purposes of the presentation referred to in subsection (a), the Secretary of the Treasury (referred to in this Act as the Secretary ) shall strike gold medals with suitable emblems, devices, and inscriptions to be determined by the Secretary. (c) Transfer of certain medals after presentation (1) Smithsonian Institution (A) In general Following the award of the gold medals in honor of Dorothy Vaughan and all women computers, mathematicians, and engineers under subsection (a), the gold medals shall be given to the Smithsonian Institution, where they shall be available for display as appropriate and made available for research. (B) Sense of Congress It is the sense of Congress that the Smithsonian Institution shall make the gold medals received under subparagraph (A) available for— (i) display, particularly at the National Museum of African American History and Culture; or (ii) loan, as appropriate, so that the medals may be displayed elsewhere. (2) Transfer to family Following the award of the gold medal in honor of Mary Jackson under subsection (a)(3)(B), the medal shall be given to her family. 5. Duplicate medals Under such regulations as the Secretary may prescribe, the Secretary may strike and sell duplicates in bronze of the gold medals struck under this Act, at a price sufficient to cover the costs of the medals, including labor, materials, dies, use of machinery, and overhead expenses. 6. Status of medals (a) National medals Medals struck pursuant to this Act are National medals for purposes of chapter 51 of title 31, United States Code. (b) Numismatic items For purposes of sections 5134 and 5136 of title 31, United States Code, all medals struck under this Act shall be considered to be numismatic items.