Hello, I just wanted to grade these coins just to make sure they had no value. The one with a bubble and black stuff could have a defect underneath. The dimes have a digit missing. I didn't know if they are from wear & tear, but I wanted to verify. The other penny is chipped but did not magnetize, so Iwanted to make sure it wasn't worth grading.
to the CCF! Unfortunately, all three of the coins you posted here are damaged. the bubble and "black stuff" are not errors or defects, they were caused while the coin was on circulation. The only one worth keeping in my opinion is the Wheat cent, though none of these would be worth the costs of grading.