I think I may have posted this in the wrong place before. So apologies for that. I bought this recently in Europe. I'm trying to find out what I can about it to tell my husband when I give it to him for his birthday. I've tried googling a bunch of headstamps and factories, but I can't find anything to account for all the codes. If anyone could give me a steer, I'd be super grateful. Thanks

European shell 1939?European shell 1939?European shell 1939?