For 2017: in uncirculated condition, about $24. in Proof condition, about $60.
All U.S. coins have the word LIBERTY on them. Most coins in 1930 also had a picture of Miss Liberty, too. NO U.S. coins used a P mint mark in 1930. So, please re-check your coin and post a new question with enough details to identify it.
The United States mint did not produce any dollar coins in 1906 with Lady Liberty on them. These are generally counterfeit coins produced in other countries for potential profit.
These coins are still in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 50 Pence. If it is a packaged mint or proof coin purchased from the Royal Mint, it will stll be worth whatever you paid for it.
All U.S. coins carry the word LIBERTY and in 1881 all silver coins carried a picture of Miss Liberty as well. Please post a new question with the coin's denomination and mint mark.
Several coins used the Seated Liberty design. Please post a new question with the coin's denomination, and the mint mark if you can locate it. Many of the coins don't have mint marks because they were made at the main mint in Philadelphia. Others will have a small S, O, or CC on the back under the eagle.
ALL U.S. coins have the word Liberty on them, and dollar coins made in 1935 and earlier ALL have a picture of Lady Liberty as well, so you'll need to post a much more specific question. Give the coin's date, how worn it is, and whether it has a mint mark. On dollars from 1922-35, the mint mark will be a small D or S near the word ONE on the back. From 1878 to 1921, look under the eagle for a small O, CC, or S; D is on some 1921 coins. Old dollar coins from the Phila. mint do not have mint marks - only coins from 1980 forward (or 1979 $1) have a P.
The coin is a Peace dollar. The date is so common retail values are only $16.00-$19.00 for circulated coins and about $21.00 for mint state coins
About $12 in average condition. Coins with a "CC" mint mark on the back are worth a dollar or two more.
Much more information is needed. All U.S. coins have the word "Liberty" on them so this is not a distinguishing characteristic. You'll need to provide the denomination, mint mark, and condition for starters.
Retail values are $312.00-$426.00 for circulated coins. That covers the grades of G-4-AU-50. Mint state coins start at $480.00
Retail is $8.00-$9.00 for most circulated coins dated 1946 because it's very common. Better circulated coins run $13.00-$19.00 and mint state coins start at $29.00+
All U.S. halves carry the word LIBERTY and coins made before 1948 also have a picture of Miss Liberty, so "liberty half" isn't specific enough to ID the coin. Please post a new question with the coin's date and mint mark.