The location of the mint mark on an Eisenhower dollar, specifically those issued in 1978, is on the obverse side of the coin. It is positioned above the year “1978” and below the bust of President Dwight D. Eisenhower. The mark indicates the U.S. Mint facility responsible for its production; “D” signifies Denver, while coins without a mint mark were produced in Philadelphia.
Identifying this small detail is essential for coin collectors as it helps determine the coin’s origin and rarity, which can impact its numismatic value. Understanding the presence or absence, and type, of this mark is a foundational skill in coin identification. The presence of a “D” mint mark denotes that the coin was struck at the Denver Mint, which produced a significant quantity of Eisenhower dollars in 1978, as opposed to the Philadelphia Mint, which did not use a mint mark during this period for these specific coins.