1948 Lincoln Penny / 1943?

Have a 1948s penny that looks to be printed over a 1943 d. Can clearly see a 3 under the 8. I know it's possible, but highly improbable.
Even if so, the odds of me pulling it out of circulation today are laughable, to say the least. Hence my skepticism. Could this actually be authentic? If so, is this the first one to surface? Its difficult to see, but the 3 is slightly raised beneath the 8. Apologies for the poor photos. Will post better ones as soon as possible.