There are many proof marks on Belgium made guns. Good clear pictures of any marks like these and the gun its self will help the pros decide what you have and the value.
By the way...Welcome to TFF.

 

Hi my friends,what you think of this one?

 

https://www.thefirearmsforum.com/threads/important-follow-guidelines-or-post-will-be-removed.14493/

 

Yes maam', we're gonna need to see sumpin'.

ys, good post. Folks could figger out a lot by themselves with just a bit of looking.

 

You tagged onto a 4 year old thread. It would be better if you started your own thread.

 

As One Shot mentioned, start your own thread.