1943 Penny Missing The #4 In The Date. Grease Error?

Thanks all for the great comments. Although there may be many of these out there, I have never seen one till now, and will add it to my collection as a coin of high interest due to its age and unique tie to WWII. Some coins are priceless.

Not sure what you mean by 2X2 and saved annotations. Is this a function/tool of the site? Or does it mean our initial input is archived for future reference. There's so much I am unaware of.

Thanks... I feel a bit dumb. Obviously, I'm a beginner. I inherited a family collection and am trying to sort through it. But in doing so, I've found a new hobby.

I have a 1943 steelie that looks just like that.

That is an interesting point. Why is the #4 missing more often than the other numbers? And on so many coins. Does this occur across all the Mints, or is it unique to one? Today, when a new coin is introduced, it is the result of lengthy development. But the one year (1943) alteration, to and from steel, was rushed... perhaps quality of the die or steel was an issue.

Obviously, no one knows the answer to this interesting question, but it does add a bit of mystery, as well as history, to the coin. Although it's not considered an error, it is a distinctive coin to include in a collection.

Mike,
Are you aware of any research on whether one of the master dies may have degraded and failed at the "4", as it was used, being a possibility?