Sorry no O mint in 1921,it's a D or S. The 1921 date is so common even in mint state the buy value is below $40.00.
The Morgan series ended in 1921. Your coin is a Peace dollar. In any case, both Morgan and Peace dollars contain .77344 oz of pure silver.
The 1900 Morgan dollar is a common date of the series. Circulated examples with no mintmarks have current market values of $32.00- $39.00 depending on the actual grade of the coin.
Peace dollars were minted from late 1921 to 1935. The older series is called a Morgan dollar after its designer, George T. Morgan.
There were two different silver dollar types issued in 1921, as they phased the Morgan Dollars out, and introduced the "new" Peace Silver Dollar. If it's a Morgan, this is the most common date in the series, and an AU would retail for about $30. If it's a Peace Dollar, the retail price would be closer to $120.
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.
Yes, yes I can. In 1878 the United States Mint first started minting the Morgan Dollar series which continued on until 1921 when it was replaced by the Peace Dollar. Below is a link to a photograph of an 1878 Uncirculated Morgan Dollar.
The 1921 Morgan dollar regardless of any mintmark is the most common coin of the entire series. Circulated coins are $37.00-$44.00.
The 1921 Morgan dollar regardless of mintmark is the most common of the entire series. Circulated coins are only valued at $16.00-$23.00, Mint State at $24.00$34.00
Assuming the coin is circulated and has no mintmark, the 1900 Morgan dollar dollar is a common date of the series. Retail values are $30.00-$39.00 depending on the grade of the coin.
The Lady Liberty Silver Dollar refers to the American Silver Eagle coin, which features an image of Lady Liberty on the obverse side. The Morgan Silver Dollar, on the other hand, was minted from 1878 to 1904 and then again in 1921, featuring the portrait of Lady Liberty on one side and an eagle on the reverse side.
For the year 1921 two different silver dollars were issued and each is a separate series of dollar coins and the designs are very different. But because of the fact you used the motto E PLURIBUS UNUM in your question that appears on the front of the coin above Miss Liberty's head, the coin is a MORGAN dollar. The 1921 Morgan dollar is the most common of all Morgan dollars, circulated coins run from $31.00-$40.00.
Please post a new question and include the series date and condition of the bill.