Looks like maybe? Not for sure. Never found one before. Size could be right. Help appreciated! Or not possibe since there is no A on the Obverse.
If those letters are incused (pressed in) that would be an after mint accident. Somehow another coin was pressed against the cent too hard. Copper is a soft metal and image transfer is fairly common.
Possible but most likely PMD. squeeze job. I see enough damage/contact on the obverse to be skeptical.
Here's a read - Search Results for “dropped” (error-ref.com) The resultant is an incuse feature/element/letter.