I'm going to guess PR67 on both. I'm not good at grading proofs, they are a much different beast than business strike coins.
Grading proofs from pictures is an exercise in futility. So, I will not attempt it, but I'll say those appear to be very attractive pieces.
Got the second one but I was off on the first one. I liked the reverse much more on the second one. Guess those who say the obverse is the key know something.
Great coins, congrats!!! I'm guessing that they each have MD on "Half Dollar" and elsewhere, correct? I was just looking at my '54s and they seem to have the same thing going on (was just getting ready to post an inquiry, actually, but won't now, after seeing yours).
Not to hijack your thread, but this is what I'm seeing on mine, and possibly yours, but on the bottom of the O in Dollar (please excuse the bad pic)