Possible 1 mon error [solved]

I have a 1668 Japanese 1 mon that looks to have a reverse double.  I have not been able to find anything about it online through search or AI.  If anyone has any idea please let me know.

I guess that could happen with a cast coin. Last picture is upside down.

N#121571

Like a twice struck coin the seed coin was pressed twice into the moulding sand for some reason but at a slight offset. It happens some times.

Thanks for taking the time to reply.  Im.not very familiar with casting, but I think im understanding what you're saying.  Do you think that it adds any rarity to the coin at all?

It is rarer then non doubled coins but if you are talking about a higher value I doubt it (at least for me there is not additional value).
I think you would need a more extreme offset or rotation for this to matter.