1964D Quarter double die obverse date Proof Coin

[Ahhlee]

Would someone be able to help me figure out what variety this coin might be I can't find anything on double date proof coins for the 1964 Denver Mint quarter https://drive.google.com/folderview?id=1hwdTdW-v0r02QkOS-mQMvqMsl0StyQim here is a link to all the images I have taken so far of my coin in question.

[Matt G]

Thank you for your post. Unfortunately, we would need the coin in hand to properly attribute it for a possible variety. It is difficult to tell via images but the coin may have been altered at some point which would impede our ability to evaluate it.