Here is your average decent example of a "One Name Bear". At first observation is appears the same as any other example in color, top, and embossing. The examples I have seen all have the multiple "rivet patch/ repairs" to the mold, especially on the reverse.
Take a look at this one though...it only has a small square shaped repair area on the lower reverse. I have not seen this before, and there are no other signs of the typical mold patches commonly found on this bottle. I looked at my "Two Name Bear", and it has a crude irregular spot in the exact location, but not a nicely defined square patch.
Is this common on this bottle? I know there are many versions of the "Bear" so perhaps I have simply missed this on other examples. It just seems odd that this area is irregular on the earlier "Two Name Bear" and cleaned up on the later version. I know it is not strength of embossing as the rest of the bottle is well struck.