Merchant Marine Museum (1) In general Following the award of the gold medal under subsection (a), the gold medal shall be given to the American Merchant Marine Museum, where it will be available for display as appropriate and available for research. (2) Sense of Congress It is the sense of Congress that the American Merchant Marine Museum should make the gold medal given to the Museum under paragraph (1) available for display elsewhere, particularly at appropriate locations associated with the United States Merchant Marine and that preference should be given to locations affiliated with the United States Merchant Marine. 4. Duplicate medals Under such regulations as the Secretary may prescribe, the Secretary may strike and sell duplicates in bronze of the gold medal struck under section 3, at a price sufficient to cover the costs of the medals, including labor, materials, dies, use of machinery, and overhead expenses. 5. Status of medals (a) National medals 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 section 5134 of title 31, United States Code, all medals struck under this Act shall be considered to be numismatic items.