After looking at thousands of quarters I'm not sure what I'm seeing here. These lines appear to run beneath the letters EDS
From what I see I would say that they are Die Line and on this coin due to the location and direction they may have been caused by the feeder fingers rubbing on the anvil die. http://www.error-ref.com/accidental-die-abrasion/ Could you post photos of full coin both sides?
This happens here too. VAM-World just calls them gouges. http://ec2-13-58-222-16.us-east-2.compute.amazonaws.com/wiki/Feed_Finger_Gouges
There seems to be some mark or rub at the same location on other side. It look like a shiny spot in photo which is typical for feeder finger abrasion. That is a nice MS looking coin.
Never said what year the quarter was...or I did miss that part above? My guess would be a 1964 D Type 1 or (a) reverse???? Just resembles a lot of my 64 quarters. Always on the look out for the reverse of 65's. =D Beautiful coin indeed!
Cool, learned something today about feeder fingers I would've said die polish lines also. Nifty doubling on the wing and some lettering, prolly MD.