First of all you did not provide enough info about the revolver for anyone to offer help with details.
Second, speaking only for myself, this is a discussion forum. I post replies here to help when I can but I would not fax or email you.
I suggest that you post pictures here of the revolver so it can be identified. I did a Google search and found many different models of these revolvers and a Google image search showed a few details that might help you. Try doing the same.
Or, try posting this on a Belgium gun forum where they were made. I don't see many of these around here.