1969 D

[N-6849]

On this coin the date and mint mark appears to have doubling. This is from uncirculated rolls.

[MintErrors]

The 6 and 9 show classic signs of worthless doubling, often called machine doubling or mechanical damage.
You can tell by the way the numbers look wide in one area and extremely thin in another area.

I suggest reading this post for more info.
https://minterrors.org/what-is-machi...anical-damage/

[Kloccwork419]

This was struck through grease. Very common
”Grease-mediated radial smear”