Any differences between '64 and '65 50c design?

Are there any subtle differences in the design between 90% silver Kennedy half dollars minted in 1964 and the 40% silver clad version issued between 1965 and 1970?
Mike Diamond is an error coin writer and researcher. Views expressed here do not necessarily reflect those held by any organization I am a member of.
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Comments
Both dates have ODV-002 and RDV-002.
The name is LEE!