Copper-iridium alloy coins represent a unique category in numismatic collecting, combining the traditional monetary metal copper with trace amounts of iridium, one of the rarest platinum group metals. These specialized coins are valued for their unusual metallic composition, historical significance, and the technical challenges involved in their production. The addition of iridium to copper creates coins with enhanced durability, corrosion resistance, and distinctive metallic properties that make them highly sought after by collectors and metallurgy enthusiasts.

The concept of incorporating iridium into copper coinage has historical precedents dating back to experimental minting practices of various colonial trading companies. During the early 17th century, when the East India Company was establishing its presence in India (formed in 1600, with significant expansion by 1603), there were documented attempts to create enhanced copper coins using available precious metal additives.
The year 1616 holds particular significance in Indian history due to a notable solar eclipse event, during which various ceremonial and commemorative items were produced. Historical records suggest that during this period, experimental copper alloys were created, though the exact composition and methods used remain subjects of numismatic research and scholarly debate.