What is the value of a us silver half dollar dated 1979?
With a date of 1979 the coin has no silver in it. 1969 was the last 40% silver circulating US half dollar. The coin is worth 50 cents.
Face value if it's from circulation. All circulation halves dated 1971 and later are made of copper-nickel, not silver. A cupronickel proof version in its original packaging might retail for $4-16 depending on variety and quality. Answer The coin is face value, the last Kennedy half made for circulation from 40% silver was 1969.
Although older silver dollars (1794-1935) all have a symbolic bust of Miss Liberty of different types on the front of the coins, no US one dollar coin is called just a "Liberty" dollar neither are the modern dollars (1971 to date) which do not have Miss Liberty on them. By the date 1979 your coin is a Susan B. Anthony dollar and none of the SBA Dollar coins struck for general circulation (except the 1979-P…
Please check your coin again. The last Peace dollars were struck in 1935. They were big (38 mm) coins made of 90% silver. A 1979 $1 coin is smaller (26.5 mm), carries a picture of Susan B. Anthony, and does not have the word "Peace" on it anywhere. In any case, a 1979 Anthony dollar that you got in change is only worth face value.