It's a very common mistake that most people make, but there is no such coin as an E PLURIBUS UNUM coin of any type.
E PLURIBUS UNUM is a NATIONAL MOTTO that appears on all most every coin ever made by the U.S. and all modern coins, just look at your pocket change. All Morgan dollars (1878-1904 & 1921) regardless of date have this motto on the obverse of the coins. 1878 is the first year of issue of the Morgan dollar series with 4 different reverse types. All coins need to be seen for an accurate value, but circulated coins have values of $30.00-$100.00 depending on the grade an type of the coin.
No such thing as a E-PLURIBUS-UNUM coin of any kind. The coin is a MORGAN dollar, the motto E PLURIBUS UNUM is on all the Morgans from 1878 to 1904 and 1921. Post new question with a DATE.
A silver dollar with the national motto on it dated 1878 is actually called a MORGAN dollar, most all US coins have this motto somewhere on the coin. It's a very common coin with a retail value of $38.00-$44.00 for most coins.
what is the current value of an 1878 silver dollar
A silver dollar with the national motto E-PLURIBUS-UNUM on it dated 1878 is actually called a MORGAN dollar, most all US Coins have this motto somewhere on the coin. 1878 is the first year of issue for this coin. The Philadelphia Mint issued 3 different types this year, but the most common (7 tail feathers) has retail values of $38.00-$45.00.
A silver dollar with the national motto E-PLURIBUS-UNUM on it dated 1878 is actually called a MORGAN dollar, most all US coins have this motto somewhere on the coin. 1878 is the first year of issue for this coin. The Philadelphia Mint issued 3 different types this year, but the most common (7 tail feathers) has retail values of $38.00-$45.00.
The only value is if there is silver in it, if not no collection value at all.
A circulated 1878 Morgan silver dollar can be worth 32 to 156 dollars.
The coin is a 1878 Morgan silver dollar and is common with values of $17.00-$31.00 in average circulated condition
There's no coin called a "union silver dollar", and the motto "E Pluribus Unum" has appeared on all circulating $1 coins minted since 1878 so that doesn't help to ID it either. Please check your coin again and post a new, separate question with its date.
It is not very easy to find out the value of a 1878 morgan silver dollar, because the value varies from $20 to $46000 which depends on the condition of the coin. A specialist could help to find the value of this coin.
Morgan silver dollars were not minted until 1878.
The coin is actually a MORGAN dollar that's also very common, average values of circulated coins are $35.00-$43.00.