Welcome Greg!
It is pretty much essential that you post pictures of anything you wish help with. Lugers especially. Take close-up pics of all numbers, letters, graphics, full side views, make sure you go over the entire pistol with a light and magnifying glass...Many numbers are small and easy to miss...
Areas to inspect are: Chamber; underside of barrel near frame; front of frame; front & rear gripstraps; and top of toggletrain. Bottom of magazines; rear of holsters.
Hopefully, these Lugers you will be looking at have been stored for quite a while, not shot or exposed to the elements.
