Your blob is just a gas bubble - caused by a streak of contaminant on the zinc core when it was plated.
The "incomplete eye" is probably due to the fact that Lincoln's portrait was not very clear on any cent minted in 1983. Compare it to another few 1983 cents and I'm sure you will see that they are the same.
The letters "touching the rim" on the reverse appear not to be touching the rim - I see a gap all the way around.
Basically by all appearances this coin is completely normal.
The "incomplete eye" is probably due to the fact that Lincoln's portrait was not very clear on any cent minted in 1983. Compare it to another few 1983 cents and I'm sure you will see that they are the same.
The letters "touching the rim" on the reverse appear not to be touching the rim - I see a gap all the way around.
Basically by all appearances this coin is completely normal.






















