Yeah, I was loosely hoping it was an S, but it looks too much like a D. Oh well. Thanks for weighing in.
Not necessarily, I am just trying to see how iPen here thinks why that is an S mint mark, and I noticed a faint line which is probably just a scratch. However, there is no sure way to find out with that image. I'm 99% sure it is a D but I could be wrong.
theres no way you can be wrong. its 100% a d look at the luster of the coin when you look at it from an angle..
Step 1: Take some putty (tape even works). Step 2: Press it into the mint mark. Step 3: Determine the letter of the mint mark. Guaranteed to work unless worn down, luster is deceiving.
Although, based off of the angled picture the S is distorted, the third picture makes me think that the top hook of the S is blended in.
so the mint accidentally placed the "s" right to the bottom of his neck not in the middle. hmm no. because again if its worn, you will see it from the angle (second picture) how its a perfect d not a s.. you see a D with a line down. not a S with the curves.
After reading the replies, I found and used a high powered loupe and it's a "D". It looked like an S because there's a scratch above the D. If you look at it from the left, it almost looks like an S. The right side of the D is pushed down and in, which was part of the confusion, too.
For a 1969 Kennedy Half, there's not much difference between a P, D and an S when in that condition anyway, right? I mean who cares if it was a proof at one point? It certainly doesn't show it.
If you find a Philly 1969 Half Dollar, please let us know. It'd be a true rarity. No 40% silver Half Dollars were ever struck there. That's right sports fans, not even the 65-67 were minted at Philly. They were all struck at Denver and San Francisco. But to be fair, a 1969-S (proof) would command a different price, even impaired.