Please help me determine the authenticity of the coin [résolu]

I got my hands on two coins and I'm not sure whether they are real or fake.
and I couldn't find the second one at the numismatist.
I'm sighing

N#14662

?

What makes you think that somebody would be faking low nomination cooper kopek that was minted in millions.

The seller states that it is a fake, so I want to verify it

N#8473

Coin which you could not find.

Ok. Rechecked. 1 kopek from 1925 is worth faking. High mintage figures in Krauze, but likely removed before widespread circulation as USSR switched to metric kopeks. Should be found only in special mint sets. Valued 20-100 times more than 1924 version.

This coin is not. There is an inscription near the monarch: “King george the sixth”. And in the catalog the inscription around is different

First of all, 1 kopek 1925 is rather rare even in such quality, big mintage is not real as most of coins in 1925 were minted with 1924 date, that is why 1925 coins are rare.

The second, as for the coin on the pictures. I think date was corrected as 5 stands fare away from 2 in the date. To my mind this is real coin but with corrected date. Try to check it. You likely can find a trace of 4 under 5. But it might be a real fake, hard to say based on such poor fotos.

Anyway, it is not a high value real coin 1925. Such shift of 5 in the date is unknown yet.

I agree about the forgery of the “5" on the Kopek. 

the 1937 Crown is probably a modern Chinese flea market toy.

 there are many such things,  with even two different countries on one coin.

Thanks everyone, I just confirmed that they are both fake.