CACG 1998-P Kennedy half double-struck, 2nd broadstrike, with the coin having a large expansion in size. It has a reeded edge as well, which is from the 1st strike.
PCGS 1997-D Kennedy half struck 55% off-center. The coin has a nearly full date, and the coin has good eye-appeal, with about half the design and planchet visible.
Major off-center...