In 1935 the US mints would have been making Peace dollars. The mintmark is located on the tails side below the word ONE. Keep in mind that if it was made at Philadelphia it will not have a mintmark.
That describes any silver dollar minted from 1794 to 1935. Please post a new question with its date and mint mark.
By the mint mark on the reverse of the coin, but silver dollar coins with no mint mark are made in Philadelphia
$28 to $35,000 depending upon the mint mark and the condition of the coin.
The mint mark position on all Peace dollars is near the word ONE on the back. No mint mark = Philadelphia D = Denver S = San Francisco
No mint mark means it was minted in Philadelphia.
In 1935 silver dollars were only struck at Philadelphia (no mint mark) and San Francisco. If you have either of these its value is in the $16 to $20 range depending on condition.
The mint mark on any Morgan dollar is on the reverse above the letters DO in dollar.
No mint mark indicates that it was made in Philadelphia.
If there's no mint mark, then it was minted in Philadelphia.
No mint mark means the coin was minted in Philadelphia.
The mint mark (if it has one) on all Morgan silver dollars is on the reverse of the coin just above the letters "DO" in dollar.
The only mint marks a Peace dollar can have are a "D" or "S". Philadelphia didn't use a "P" mint mark on $1 coins until 1979. Please see the Related Question for more information.