You'll need to check its condition and mint mark. This page shows a range of values.
This is the final year that the Peace Dollar was minted. The value in decent condition is about $40. I'm not sure what the "D" means. This coin was minted in Philadelphia and Sacremento only. My source doesn't indicate that they were minted in Denver (D)
Please look at the mintmark again. The Denver Mint did not exist in 1896. Post new question.
The 1967 Kennedy half dollar is a 40% silver coin, value is about $5.00. The coin is very common.
The current face value of all presidential dollar coins is $1. Remember, they're brass, not gold. Presidential dollar coins minted at Philadelphia and Denver are worth a dollar even if they are uncirculated. Proof-quality presidential dollar coins minted at San Fransisco are worth $3.
A Kennedy Half Dollar that was minted in 2007 and carries a mint mark of "S," was produced in clad and silver. The clad in a proof state is worth: $4; in silver, the value is: $7.00.
The last half dollars that carried a picture of Miss Liberty were minted in 1947. All halves minted since 1964 have a picture of John F. Kennedy and are called Kennedy halves. There's more information at the Related Question.
One Dollar. They are being minted for circulation.
Eisenhower was on the DOLLAR coin in the 1970s. KENNEDY has been on the half dollar since 1964. A 1985 Kennedy half is still worth 50 cents.
There were no dollar coins minted that year.
It's been altered after it was minted. No extra value.
Please post a new question with the coin's date. Quarters have been minted in Denver for over a century.