Italy Napoleonic Kingdom 10 Soldi 1814: star clusters and overlap

This post is intended to investigate wether it is normal for the edges of 1808-1814 10 Soldi coins from the Napoleonic Kingdom of Italy to have 4 separate stars forming a close cluster as well as 4 stars forming 2 pairs of overlapping stars, as indicated with the red arrows in the image below. Here is the link to the Numista page: N#8129

It is a common technique to inscribe texts or to create reeding on an edge by rotating a coin between two straight bars that press the desired design onto the edge. In this case there is an overlap, that may indicate that bars were used to press stars into the edge of the slightly larger 15 Soldi coins causing an overlap of stars (the Numista page for 15 Soldi coins doesn't make clear what the edge is supposed to look like, it just says ‘incuse’: N#23979 ), in that case the 10 Soldi shown has an edge error.
 

I took the pictures with the coin laying in an old reflecting frame for a car head light from which I have removed the glass.

EDIT:
When you have a coin of this type, then please share edge pictures, preferably including one showing the year on the obverse and one showing the mint mark on the reverse. In case you wish to share images anonymously, then please send them to me in a private message.

List of year lines mentioning the edge variety we now know exists:
1811  M: Stars with overlap (wheatiefan)

1812 M: Evenly spaced stars (Mr. Midnight)

1814 M: Stars with overlap (E. Timmermans)

Thanks, great work and innovation on the edge photo, I was going to use an old flashlight reflector, they're antiques now. Clearly there's something wrong with the star pattern of your edge. All I have is a 5 Soldi (1808 M) that has the stars edge (see Numista, stars evenly spaced), it's crudely done and mine has a rim cud to prove their strike quality wasn't the best and still done on a screw press. Photo:  http://www.moneta-coins.com/showphoto.php?photo=2594&title=italykingdom-of-napoleon5-soldi-1808&cat=575

Your post made me get my 10 Soldi out of storage for a look and pictures. There is one section with four stars in a row (1st pic) and a second section 180 degrees opposite where two stars have an uneven overlap, so they appear smushed. I would not have thought to look if not for your post.

Thank you to both Juno Moneta and wheatiefan for the response!

So for now it looks like just 10 Soldi coins are affected with this bad spacing issue.
@wheatiefan, from what year is your coin? Is it from 1814 as well?
It would be interesting to know wether some/all 10 Soldi coins of multiple date issues have this spacing issue or just all/some 1814 10 Soldi coins.
In the image below both our coins are shown for comparison (I rotated the image of mine over 140 degrees):

My 10 Soldi is from 1811.

I don't know that the edge overlap is an issue. From what I've read about 8 Reales it was expected for the overlaps to be 180 degrees from each other and have a visible misalignment or obliteration of details.

Although it's an interesting experiment to think about how to make them spaced perfectly.

I have one as well, mine is 1812 M

This is five shots, showing the entire coin. Stars seem fairly even. 

Mr. Midnight

I have one as well, mine is 1812 M

This is five shots, showing the entire coin. Stars seem fairly even. 

This is great, thank you!
So now we know 2 edge varieties exist for these 10 Soldi coins, with stars spread fairly even and the ones with an overlap like wheatiefan and I have. For now it remains unknown wether edge varieties exist within a certain year and mint issue, yet this is enough already to be mentioned on the page for this coin type. Hopefully more people still will share pictures!

@wheatiefan It looks like your coin has mint mark M.

I just came into posession of a 15 Soldi 1808 M coin so I can show you the distribution of the stars on the edge. There are also the two clusters where 4 Stars are closer together and there they are not 100% in a line but they do not overlap. 
I also have a 10 Soldi 1811 M which I could check and provide pictures in a few months (sadly its currently in storage at another adress which is far away..) I hope this is relevant and helpful for your discussion!

PK_2020

I just came into posession of a 15 Soldi 1808 M coin so I can show you the distribution of the stars on the edge. There are also the two clusters where 4 Stars are closer together and there they are not 100% in a line but they do not overlap. 
I also have a 10 Soldi 1811 M which I could check and provide pictures in a few months (sadly its currently in storage at another adress which is far away..) I hope this is relevant and helpful for your discussion!

Thank you for your pictures of the 15 Soldi coin, really interesting that this type of coin also can have these ‘4 star’-clusters!

I'm looking forward to see pictures of your 10 soldi coin at some point in the future!