Turns out it is actually a 1968 D. The doubling is only on the reverse and only on the lettering, "UNITED STATES OF AMERICA HALF DOLLAR"
NO where else. Just there. No designs, nothing. Just the above stated. In " UNITED STATES OF AMERICA" the doubling is on the left side ( as is you are reading it ) of all the letters. In "HALF DOLLAR" the doubling is on the right side (as if reading) of all the letters. So the die was shifted counter clockwise.
This is called strike doubling, the secondary doubling is flat and there's no splits in the letters. The die did shift as it was retracting from the surface of the coin, but it nudge the edges of the letters and moved the metal sideways and away from the letters.