1943 D steel cent
Hello and welcome to the hobby of kings! Your 1943-D cent is considered normal and does not have an "error" or actual, true die doubling. This extra metal is the result of a phenomenon known in the hobby as "strike doubling" or machine doubling. The main difference between this type of doubling and genuine hub or die doubling seen on a coin is that hub or die doubling happens during the production life of the die, so it is classified as a real 'mistake' by the Mint. Your coin exhibits the flat, shelf-like doubling that sometimes occurs as a coin is being ejected from the coining chamber. It received a very light additional 'hit' from the obverse die right after it was initially struck, creating those blobbed images. Notice that the same doubling can be seen in the same direction on most other portions of the date. A true doubled die coin won't show doubling in that manner; there would be "notches" on letters/numerals. If you have access to a "Cherrypickers' Guide" check out the appendix on this topic; they explain it best.6 years ago
Thank you so much for a great explanation and your time. I obviously have a lot to learn and I'm looking forward to it.