In a few posts, SPP posted a picture of a DDO 1967 penny. How many different DDO can be found for this year 67? I got one with double chin/letters and the second one only letters is double. Is there many state of the doubling?
The other doubled elements you are seeing are the result of Machine Doubling and Die Deterioration Doubling, which are very common to see on both the obverse and reverse for that year.
Here is a good read on the various types of doubling:
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