The American Mint's medallion titled "NASA's Long-Serving Orbiter/Discovery" is a proof/uncirculated medal made of copper with silver-plated accents. This finely crafted piece has a fineness of 0.999 and was manufactured in the United States. The medallion pays tribute to NASA's space shuttle Discovery, reflecting its long and distinguished service in orbit. This collectible item from American Mint combines artistry with a nod to space exploration history, making it a desirable addition for collectors of medals and numismatic items.