8-4-11>>> It's a counter-stamp that has been added to the coin after it was struck at the Mint. I have only seen the "Hammer & Sickle" on the Bicentennial Kennedy halves. The origin is unknown to me, and it only has value to someone that wants it.
Hammer and sickle
It's not a Hammer & Sickle it's the letters G.R. for Gilroy Roberts. He designed the front of the coin.
Yes, Kennedy's face is still on the half dollar.
Kennedy is on the HALF dollar. A 1994 half is worth 50 cents.
A 1971 Kennedy half dollar is worth anywhere from $45 to $280 dollars. The Kennedy half dollar began circulation in 1964.
No 1963 Kennedy half dollars exist. 1963 is the last year of the Franklin half dollar. 1964 is the first year for Kennedy.
On the Kennedy half dollar
Kennedy
Try again. The Kennedy half dollar wasn't introduced until 1964.
Check that coin again. Kennedy wasn't put on the half dollar until 1964.
the 1972 Kennedy half dollar is worth 50 cents in circulated condition, or about a dollar in uncirculated condition
Kennedy is still on the half dollar coins.