The coin in question is a 1990 Jefferson Nickel, minted in Denver, denoted by the "D" mint mark. This five-cent piece is part of the Jefferson Nickels series, which feature a portrait of Thomas Jefferson on the obverse and Monticello, Jefferson's Virginia home, on the reverse. Struck from a copper-nickel alloy, this Nickel has a diameter of 21.2 millimeters and weighs 5 grams. The total mintage for this particular year and mint is substantial, with over 663 million coins produced, indicating that it is quite common in circulation. Despite its high mintage, the 1990 Denver Mint Jefferson Nickel is a cherished part of American numismatic history, reflecting both the artistry and cultural heritage of the United States. As legal tender, it represents an essential component of everyday transactions, embodying a piece of history valuable to collectors and enthusiasts alike. The coin's simplicity in design and accessibility serves as a reminder of Thomas Jefferson's contributions to the nation, making it a notable collectible for those interested in U.S. coins.