There is no such thing as an E Pluribus Unum coin. You need to give us the denomination and year before we can even begin to remotely help you. All E Pluribus Unum tells us is that you have a US coin which isn't much help to us because depending on the design of the coin and the denomination the mintmark could be in a number of places.
The mint mark on all modern presidential dollars is on the edge of the coin, along with the date and the motto E PLURIBUS UNUM.
"E pluribus unum" is NOT a mint mark, but rather is the motto on the Great Seal of the United States. As far as a coin value, post a new question that includes the date and actual mint mark.
It depends on the type of coin the date and denomination on were the mint mark is located
The mint mark is located on the reverse [tails] side of the coin at the bottom below the wreath. If there is no mint mark then the coin was minted at the Philadelphia Mint.
$27 to $120,000 depending upon the mint mark and the condition of the coin.
1873 copper coin e pluribus notho om mint mark on it skull face Morgan peace dollar
According to coinbrag.com the mint mark is located on the obverse over the date.
Post a new question and include denomination and mint-mark if it has one.
$27 to $350,000 depending upon the mint mark and the condition of the coin.
Nearly all American coins carry the motto "E Pluribus Unum" so that's not an identifying mark. Please post a new question with the coin's denomination. If there's a mint mark letter on the back include that with your question.
The mint mark of the Denver Mint (shown as a "D") and the San Francisco Mint (shown as "S) on the Eisenhower Dollar is located on the obverse (heads) side of the coin directly beneath the bust of Eisenhower. If there is no mint mark there, then the coin was struck at the Philadelphia Mint and in this mint did not place a mint mark on the coins struck there until 1979.
The coin is very common, circulated examples sell for $17.00-$26.00