The coin in question is a U.S. Assay Commission Medal from the year 1887, which holds a significant place in numismatic history. As a special production medal, it is a unique artifact from the United States, showcasing the design and artistry of the late 19th century. This particular item is made of copper, reflecting the materials commonly used during that era. Although it has no specified mint or designer and lacks traditional measurements for width, height, diameter, and weight, its historical context adds considerable value. The absence of a mint mark further emphasizes its connection to the U.S. Assay Commission, which was responsible for testing and assaying precious metals to ensure their quality. While the mintage is noted as '0', this suggests that either the production records are incomplete or it was not officially issued for general circulation, enhancing its rarity and desirability among collectors. As a piece of U.S. numismatic history, this 1887 medal exemplifies the themes of craftsmanship and the evolving nature of American coinage, representing a bygone era in the United States' monetary system. Overall, this coin is not merely a financial instrument but a commemorative item that symbolizes the values and standards upheld by the U.S. Assay Commission during the late 1800s. Its significance lies not only in its material composition but also in its role within the broader narrative of American currency history.