1964 d

I had Metal Detected this location 6 times and have found 313 Quarters, 40 Dimes, and 56 Pennies, but in my last trip I finally found a pre-1965 Silver Quarter at a Former Elementary School (est. pre-1940s) & Little League Field.

Going through my coins and just discovered this, curious as to thoughts on what it may be, rarity, and potential value. Thank you