Help me with 5 Euro Cent Slovakia - 2009

Hello, how are you? I received this coin in coffee change, but what caught my attention was having an "R" instead of a "K".
Mine:


From numista:





Has anyone seen one like this? Is it false? If it's original, what do I do?
If need more images, tell-me.

Best regards,
Filipe
Portugal

It's just a crater on the K (post mint damage).
The damage over the 2 is stranger ... maybe a rust bubble.

Verweis : "Idolenz"​It's just a crater on the K (post mint damage).
​The damage over the 2 is stranger ... maybe a rust bubble.

​Hi, thanks for the reply, when I saw it I thought it might be damaged between the "V" and the "2", but the "R" I can't understand. Is it possible for me to take a coin and add/modify letters? (With soldering devices or something)

Like I said I think it's expansion through corrosion where the thin copper cladding was damaged.

Verweis : "Idolenz"​Like I said I think it's expansion through corrosion where the thin copper cladding was damaged.
​

​ah ok, i'm sorry because i must have misinterpreted. I will clean the coin, and go back to this forum and post a new picture. Thanks