with suitable emblems, devices, and inscriptions, to be determined by the Secretary. 4. Duplicate medals The Secretary may strike and sell duplicates in bronze of the gold medal struck pursuant to section 3, at a price sufficient to cover the costs of the medals, including labor, materials, dies, use of machinery, and overhead expenses. 5. Sense of Congress It is the sense of the Congress that the United States Mint should expedite production of the gold medal and duplicate medals under this Act, so that the UNCF and its member-institutions can be recognized in a timely manner for its 80th anniversary. 6. Status of medals (a) National medals The medals struck under 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. 7. Authority to use fund amounts