any idea?

[Craigob]

I have had this disc a while and it occured to me that i dont know what it is..
can anyone help? Its about an Inch in size with no other markings apart from whats on the front and rear.


thanks

[Christian L]

the writting is about ... this coin have those how help to make the graves "better looking" ...
some kind of inofficial.
its ww1 i think