Look at the base of the shoulder. If you see a VDB there it's certainly 1918 or later.
Looks like the trumpet tail mint mark. The mint mark has been damaged by contact. That's why it's flattened out.
Look for doubled dies and RPMs. These would be varieties though; not errors. http://doubleddie.com/452412.html
This is the result of a plating disturbance. Not a doubled die. http://www.error-ref.com/other-forms-of-doubling/
These things come from commercial laundromat dryers. The coins get stuck between the inner and outer drums....
Good luck and keep us posted.
What I'm seeing in bays 3 & 10 is definitely not part of the design.
This is interesting, and it would take an in hand look. It would be rare for this type of doubling on an early Memorial cent, but it looks like...
Nice find. You can't beat those DDO/RPM combos!
Incidental rim damage that happened later is what it looks like to me. I've never seen a fake clip offer rims that fade towards the clip like this...
This is a legitimate clipped planchet. The Blakesley effect doesn't always show, and its absence isn't conclusive.
And by the way, a doubled die is not created during the engraving process. One can have engraving doubling, but this is entirely different from...
Doubled dies are varieties. Here's some education for you- https://www.ngccoin.com/news/article/1655/Variety-versus-Mint-Error/
"Doubled die IS a variety. It is NOT an error." There. I fixed your error.
It's a spooned/dryer coin. Post-mint damage.
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