The phrase "E pluribus unum" does nothing to describe the coin, because it's found on most US Coins. That said, a 2011 US dollar coin is worth exactly one dollar.
It's made of brass, not gold, and is worth one dollar.
All U.S. coins dated 1972 have the motto E-PLURIBUS-UNUM. The only $1 coin minted that year is the Eisenhower dollar. None of the coins were struck in gold. It has been privately gold plated, and has no numismatic value. It's worth $1 unless you find someone that wants it.
If your coin says E PLURIBUS UNUM on it, then it's not a U.S. Mint Gold Dollar. It may be a gold plated silver dollar -- in which case it is currently worth about $20 If it's something else, then it will only be worth whatever melt value it may have.
A denomination is needed. Post new question please. NOTE: The words E PLURIBUS UNUM are NOT the name of any coin, it's the national motto that's on most all US coins.
Its 1$
Please look at your pocket change. Nearly all American coins carry the motto "E Pluribus Unum" ("From Many, One") so noting that a coin carries that wording isn't specific enough to identify it.
$10 Indian Head gold coins were minted for many years. In order to give an estimated value the date on your coin must be known.
1000 dollars
If the coin is actually made from gold, it will be worth whatever the gold content is worth. If it is a coin of gold appearance, it will maybe be worth whatever you paid for it.
The coin was minted in 2011, is made of brass, contains NO gold, and is worth one dollar.
Silver, not gold. E Pluribus Unum, not "eplurius" (check the spelling on the coin) Plus, ALL coins have that motto so it doesn't help to ID a particular item. Presumably it IS a dollar coin, at least. In that case the gold color is because it was plated for use in jewelry or similar. That would make it an altered coin worth only its metal value, about $14 as of 08/2008
The motto E PLURIBUS UNUM is not used to identify any US coin regardless. All us coins have the motto. A coin dated 1901 could be a $20.00 gold coin down to a Indian Head cent. The denomination, date , mint mark and condition is what's needed for a assessment.