1926 Sesquicentennial Half Dollar - Grade?

Hey all,

Thrilled to present my new (to me) 1926 U.S. Sesquicentennial Half! I posted earlier this week about a very low grade one I had my eye on, but I spotted another that I decided I'd rather have and won that auction.

Here it is:

Obverse:



Reverse:



What would you all say as to grade? I think F15 or VF20... I really like this coin. Enough wear to appreciate the history behind it, but enough detail left to tell the design.

Thanks,

TSS