Thank you. Well, I feel a lot better about it now.
I took it to a smith near my new job for a careful go-over.
He has a few Lugers and a regular who is in deep with them.
They really got a kick out of it. although it checked out and is terrific shape...they advised me not to use it..they hadn't seen one like it.
Hadn't planned on a safe queen but nice to know it's special.