How Many Errors Can A Coin Have

Theoretically? Pretty much as many as there are non-mutually-exclusive errors. Practically? Significant error coins are one in thousands, so just take ~1/1000 to the power of the number of errors you want to have, and that's the very rough probability of getting a coin with that many errors. You'll very quickly get into numbers higher than the number of coins that have ever been minted.

Well lemme stop you right there. You didn't find a 1996 RPM because that is impossible. They stopped hand punching mint marks in 1990, so any coin made since then can't have an RPM. Also, there are no known die pairs that combine a DDO / DDR for 1996 to the best of my knowledge. Almost certainly some form of what we call "worthless doubling" - Machine Doubling, Die Deterioration Doubling, split plate doubling, etc.

thanks SAM

Sorry but not a Doubled Die.
As stated, it looks like Die Deterioration Doubling, a worthless form of of doubling.

Well I see no errors on this one. I see as already mentioned a die event. DDD. When I hear the term error, I only think of mint errors. There are no mint errors on this one. Errors is a vague term used for everything. A Doubled die is not an error. It is a die variety. A RPM is not an error, It also is a Die variety. Coin damage is not a mint error. That is post strike damage along with intentional damage, not a mint error. An error coin to me is a one off mint error. There are many examples of this, but make a a tiny amount of coins in view off all of the total coins struck. So I feel there are not a lot of errors. Except the calling coins wrong. To me I find errors, but they are rare. Now die events there are many examples of these, and to me they don't excite me. I'm a variety collector.

Thanks for the info guys