Can't make out if this is one thing or a combination of things. Triangular area between eye, ear and mouth, all distinct features are gone with a horizontal, rounded, raised area from eye towards ear, and a much larger one from mouth to ear, 3rd foto has the close-up). Hopefully, one of you experienced people can enlighten me. I adjusted the lighting slightly because otherwise all you could see was a nearly black circle with copper coloured devices, lol
On pre 1982 Cents they are known as Occluded Gas in the Copper. I really can't tell and I know it is hard to take a clear picture of the issue.
Thanks! Here is an old thread of mine concerning Occluded Gas https://www.cointalk.com/threads/1c-occluded-gas-bubble-planchet-error.324523/
Great thread. Here are another two fotos, 2nd one is better, but i don't know if they will be much more help.