10 Haléřů -Aluminium ??

Hello to all colleagues
Is it chemical destruction of aluminum after? or error when hit a coin?

https://en.numista.com/catalogue/pieces2017.html

thank you for answer
Ivan

Hello my Friend ,hope all is well with you and family. I too have an aluminum coin in same shape. Looks like it is being destruction but looks like it has die cracks. Iam thinking it is a bad planchet, blank. And a bad die.
Here is a coin from Japan

Here is a coin from Brazil with what I think is just a Planchet, blank. problem

I will want to hear what others say

Цитата: "ALLRED1950"​ Hello my Friend ,hope all is well with you and family. I too have an aluminum coin in same shape. Looks like it is being destruction but looks like it has die cracks. Iam thinking it is a bad planchet, blank. And a bad die.
​Here is a coin from Japan

​

​Thanks Daryl
I also read your contributions to the forum,
Okay, OK home -family
- I'm looking forward to another exchange with you
Thanks for the answer
Ivan

Yes my friend looking forward to another exchange. Gave me a month or two to get my health back up.