Collectible coins, such as the 1994 Denver nickel (5c), are items of interest for numismatists. The 1994 Denver nickel features the obverse portrait of Thomas Jefferson and the reverse depiction of Monticello. Nickels are often collected due to their historical significance, variations, and mint marks, with the Denver mint being one of the primary locations for coin production in the United States. Rolls of nickels, including those from specific years, are sought after for both their potential numismatic value and the opportunity to find rarer varieties or mint errors.