The 1860 o seated liberty dollar is a valuable coin, but it depends on the condition. It could be anything from 50 to 3000.
The Carson City mint opened in 1870. If your coin is dated 1860 with a CC mint mark it's a counterfeit.
1922 silver dollar with closed eagle wings
About $107.50.
They didn't mint 1920 US silver dollars.
With an O mint mark on the back, $200 in worn condition, $250 with moderate wear, and $300 if only slightly worn. With no mint mark, $250, $370, $550
The coin is a Eisenhower dollar and has no silver in it. Only proof and uncirculated coins from the mint have more than face value.
About $150.
42cents
About $27.
About $17.00.
A 1924 Silver Dollar would include the Peace Dollar. If its mint state is very good (VG-8), the value is: $20. Should the mint state be MS-60, the value increases to: $35. A 1924 silver dollar is a Peace dollar, values for circulated coins are $17.00-$26.00. The term "Mint State" is used only for uncirculated coins.
"DO" isn't a mint mark. The mint mark on a silver dollar for that year is on the reverse (tails) side, just above the letters "do" in the word "dollar."