Sometime ago I bought this medal #684708. I have 2 more of this type, and comparing them it is obvious that there are differences. The most important thing that I can see is that the ring is not soldered, and the medal is a little thicker than the other 2.
The suspensions are correct.

I´m not sure if it is a later one modified or one for replacement because of the original lost…….

What do you think about it?

Thanks for your help.