Thanks for the additional information. My pistol matches up with the information given in the post with a few minor exceptions.
There appears to be a magazine safety on mine, based on the photo in the post, although I'm not sure it is functional. If I cock the pistol, remove the magazine, then pull the trigger, the striker sounds as if it is activated. Is there some sort of striker block that would prevent the pistol from firing?
The markings on my psitol differ a bit from the example shown on your post as there are 3 marks on the right side of the receiver, although one is WaA66. Also the Eagle N is on the toggle link rather than on the receiver.
By the way, what is the small vertical weld mark on the receiver, about a half inch to the rear of the side plate?
Lastly, is the mark I call a "bug" on the right side of the barrel, about a half inch forward of the receiver. Any thoughts on this?
My Luger knowledge is non-existent, so this Forum has been very informative. Thanks again for your help.