Someone outside the mint did that to the letter Y with a sharp instrument. Copper is a relatively soft metal and its easy to push the metal around. Look at the small gouge near the middle of the Y. IMO you don't have a DDO nor a DDR. If you believe you do, please post clear closeups of the areas where you see the doubling. Thank you.
Just damage. Not a mint error nor doubled die. No mint mark means it was minted at the Philadelphia mint.
