1970-D Kennedy Half Dollar Value is current melt for circulated examples, and uncirculated examples can bring $10 raw.
1970-D Kennedy halves can be worth $45 in MS65 and $300 in MS66, if graded by PCGS or NGC.
1965 – 1970 Kennedy Half Dollars are made of 40% silver and no proofs were struck from 1965 through 1967. The Denver Mint issued business strike coins and the San Francisco Mint issued proof versions. 1968-1970 have either a D mint mark or are in a proof set with an S mint mark.