Question on a coin roll hunting find ??

[tanz 82]

It's a 1955 but as you can see the last 5 is very faint. Is this a mint error? If so what is the classification and rarity? Thanks folks for any help !!

 

[trdking]

This appears to be a Die Fill Error Hard to tell from a photo The 1955 penny was plagued with cracked dies (Cud coins) and Filled dies (Grease or contaminant in the die surfaces.) Im not an error expert Someone may chime in and say different? Not a tremendous value but unique IMO

 

[Kantuckkeean]

Not an expert, but I'd say grease-filled die.

Kindest regards,
Kantuck

 

[enamel7]

Grease filled die, not rare and no added value.

 

[A2coins]

cool find good to check