It depends on the date and design. Not every year will have all mint marks, especially because mints have opened and closed over the 2 centuries that $1 coins have been minted
Possible letters are:
The mint mark on an 1848 US dollar coin can be found on the reverse side of the coin, below the eagle and above the "M" in the word "DOLLAR." If the coin was minted in Philadelphia, there will be no mint mark present, as the Philadelphia Mint did not use mint marks until 1979.
The "P" Mint mark was not used on any US $1 coin until 1979. Your coin was struck in Philadelphia
Any US coin without a mint mark was minted in Philadelphia, because for a while, it was the only mint.
The mint mark on a US Trade Dollar is located on the reverse [tails] side of the coin just above the letter "D" in "DOLLAR". No mint mark = Philadelphia S = San Francisco CC = Carson City
$28 to $35,000 depending upon the mint mark and the condition of the coin.
The mint mark on an 1848 US dollar coin can be found on the reverse side of the coin, below the eagle and above the "M" in the word "DOLLAR." If the coin was minted in Philadelphia, there will be no mint mark present, as the Philadelphia Mint did not use mint marks until 1979.
The "P" Mint mark was not used on any US $1 coin until 1979. Your coin was struck in Philadelphia
Any US coin without a mint mark was minted in Philadelphia, because for a while, it was the only mint.
If the coin has a mintmark, it's on the reverse above the letters DO in dollar.
The mint mark on a US Trade Dollar is located on the reverse [tails] side of the coin just above the letter "D" in "DOLLAR". No mint mark = Philadelphia S = San Francisco CC = Carson City
$28 to $35,000 depending upon the mint mark and the condition of the coin.
July 2, 2009 A 1974 Eisenhower Dollar with no mint mark was struck in the US mint at Philadelphia. In uncirculated condition this coin sells for about $4. In circulated condition it sells for about $1.50 - $2
The mint mark for the 1909 Half Eagle is located on the reverse {eagle} side of the coin just to the left of the arrow points.
$6 to $15,000 depending upon the mint mark and the condition of the coin.
No US 1799 coin will have a mintmark, all were struck in Philadelphia.
$22 to $22,000 depending upon the mint mark and the condition of the coin.
From about $1300 to $75,000 depending upon the mint mark and the condition of the coin.