Two different types of silver dollars were issued in 1921 with very different values. This was the last year for Morgan dollars and the first year for Peace dollars. The simplest way to tell the two apart is on the reverse of a Peace dollar the eagle is standing on a rock with its wings folded, the Morgan has the wings spread out. Please post new question with more information.
There is no 1921 barber silver dollar, it is either a peace dollar (eagle perched on a rock engraved PEACE on the reverse) or a Morgan dollar (Eagle with gothic lettering above it saying "In God we Trust" on the reverse)
1921 is by far the most common date for Morgan dollars, currently worth just under $20 for the silver.
E-PLURIBUS-UNUM is NOT a type of silver dollar, it is the national motto that is on most coins. The coin is a Morgan dollar with a value in the $28.00-$30.00 range.
1921 is by far the most common date for Morgan dollars -- current value is about $17.00
wats the valu 1923 and 1921 e. pluribus unum
A average Mint State 1921 Morgan is $30.00-$40.00
That is a Morgan Dollar and the 1921 series is by far the most common. In circulated condition it is worth around $22 for the price of silver in the coin. If uncirculated, it could, however, be worth a premium.
About 23.00$ depending of the price of silver....
$24.00 to $35.00 for MS-60 to MS-63
They stopped making Morgan dollars in 1921.
Morgan dollars from 1921 are the most common Morgan dollar and even in uncirculated condition they don't command much of a premium over melt. They are worth about $30-35 depending on condition and silver price if circulated and perhaps $40 if completely uncirculated.
The coin is valued at a price between $25 to $50. The price will vary depending upon the condition of the silver dollar.
Retail values for a MS-60 to MS-63 are $20.00 to $31.00
There is around .77 ounces in a 1921 US silver dollar.
1921 Morgan dollars are very common, no matter what the mintmark is. Coins in any less than uncirculated condition are only worth silver scrap, about $23 at the time of writing. Uncirculated 1921 Morgans generally go for less than $50.
1921 is by far the most common date for Morgan silver dollars. With silver prices dropping at the moment (17 April 2013), one is worth $18-$20.
The "Mercury" coin is a dime. In addition the P mint mark was first used on $1 coins starting in 1979 so that letter can't be on a 1921 dollar. A 1921 Morgan Dollar (eagle on reverse with spread wings facing forward) is the most common silver dollar and is valued by its silver content. A 1921 P Peace Dollar (eagle perched in profile) is one of the harder dates to find and is worth at least $50 badly worn and a few hundred if uncirculated.