1938 year 5 kopecks with older than usual obverse? [επιλυμένο]

I will stick my neck out and say it’s a fake.

It could be, the point is that I have seen a lot of this kind errors, but 3 years in future with old obverse is very weird. I did spectre analysis, but results was same as original 1930-1935 year 5 kopecks, so I am confused right now.

Can you get a close-up of the edge? Looks like it's been bonded on:

A 20 kopecks 1941 with the 1935-1936 reverse is documented:
https://en.numista.com/catalogue/pieces5484.html

This seems to be a mule.
https://en.numista.com/forum/topic59015.html#p486068

If it can't be proven that OneLogic's coin is 'doctored', then it may be a mule.

EDIT: I wrote this before seeing that OneLogic has two more alleged Soviet kopeck mint errors to determine. While one mint error popping up from nowhere is interesting, three mint errors popping up at the same place and same time is a red flag.

I am collecting error coins (all kind of not regular mint). After winter I will send them all to gradding company and before that I need to find out more information, because I have been collecting like 9 years and those are the "Pearls".

What is weird to all this, that weight error of coins are a lot (there is even 1 gram).
Some coins has patina already.

I don't drop out the possibility, that coins were made on REAL BANK blank by self-made stamp.

But the point is that there was coins like that in REAL, so I am trying to find out some information and this forum is not only the one I searching.