20 Kopek 1915 BC - fake or not?

I need some help...
This Russian Empire coin came to my hands, after a superficial research i discovered the 'real' 20 kopek has milled edge, and this one has four milled segment breaks.
I have already tested it's magnetism, and it's not magnetic. Its diammeter is in between 21 ~ 22 mm. And unfortunately i don't have its weight.
Does anyone have info about this?

I don't know about the diameter but the weight should be 3.60 g.:

I can only find reference to the edge here on Numista which states it as milled with an image.

It would surprise me if a coin with a mintage of over 100 million and with a fairly low value. Maybe someone else can shine some light on your dilemma if they have one themselves.

Thank you both! I still hope to know the difference, but you've actually brought some light to my thoughts.

need to know weight
original is 3.60 g

if fake could be 3 g (fakes existed, even with such large mintage)

the edge is wrong, here's mine for comparison, it's from 1914 so it's not the same date but it's the same type.


does your coin have any luster?

It's really shiny and it's mirroring, looks completely uncirculated and doesn't seem to have ever been cleaned or polished.
The risk over the face value was made by tweezers, the guy i bought it from did it (a shame if the coin is not fake).

Your coin is not a fake, but it was a part of some jewelry, thus the marks on the rim after soldering was removed.

Your coin is 100% authentic. Coins of this type are not valuable enough to make counterfeiting worthwhile. If a forgery were ever encountered, it would most likely be a Contemporary Forgery — and in that case, it could actually be more valuable than the genuine coin.