If you mean the series of US Liberty Seated coins (1837-1891) on the obverse or front of the coins Liberty is seated, body facing right an head facing left. The denominations of the series are: Dollars, Half Dollars, Quarters, Twenty Cent pieces, Dimes and Half Dimes.
A seated Lady Liberty.
$300 to $150,000 depending upon the date and the condition of the coin.
There's no such coin. The last Liberty Seated dollars were struck in 1873. The Morgan series started in 1878.
It's likely the piece is a replica or a silver bullion coin of some type, the weight and diameter do not match any coin of the Liberty Seated series of coins
The "Liberty Seated" coins were mostly minted between 1837 - 1891, except for the Dollars. The Seated Liberty Dollar was minted from 1840 - 1873. The Gobrecht Dollar minted 1836 - 1839 and the Trade Dollars minted 1873 - 1885 also show a seated liberty figure. The Related Link contains pictures of all major U.S. coin types. You can try to match your coin to one of the images show, then post a new question with more details once you are able to make a better determination of what your coin is.
The U.S. Mint has never produced a one troy ounce seated liberty coin. I can only deduce that you have a privately minted one ounce silver round that has a seated liberty design on it. These have been minted for decades and continue to be minted every year by private companies.
The value of your coin is dependent on the grade of the coin. In 1856 the mint produced a seated liberty dollar and it is valued at between $400.00 and $38,500.00 depending on the grade of the coin.
It is not possible to give an estimated value based only on the year the coin was minted. The denomination is essential.
Although "Miss Liberty" is seated the coin is not a Liberty Seated dollar (1840-1873), it's a 1877 TRADE DOLLAR (1873-1885) as stated on the reverse. Authentic circulated examples have retail values of $120.00- $350.00. NOTE: The entire series of these coins is known to have replicas, copy's & counterfeits.
Yes, Liberty Seated dollars were struck in 1865.
If you have a Liberty Seated Dime, the "CC" mint mark will be on the reverse [tails] side of the coin at the bottom and can be either inside the wreath or just below it. If you have a Liberty Seated Quarter the "CC" mint mark will be on the reverse [tails] side of the coin at the bottom below the eagle. If you have a Liberty Seated Half Dollar the "CC" mint mark will be on the reverse [tails] side of the coin at the bottom below the eagle. If you have a Lbert Seated Silver Dollar the "CC" mint mark will be on the reverse [tails] side of the coin at the bottom below the eagle. If you have a Silver Trade Dollar the "CC" mint mark will be on the reverse [tails] side of the coin a the bottom just above the "D" in "DOLLAR" If you have a Morgan Silver Dollar the "CC" mint mark will be on the reverse [tails] side of the coin at the bottom below the wreath.
The best way to tell is to take it to a coin collector and see what he/she thinks.