Semantics, no difference as there are no "luger" armorers around(except maybe in Switzerland), IMO. Well, with exception of a few members here.
Most "gunsmiths" don't know much about lugers!
You are as well off to inspect it your self for damage, cracks.
If matching, I would not hesitate to fire it if it passes inspection.
The only thing I see a little "amiss" is the strong marking from the toggle on the rear of the frame. This could be from a too weak mainspring or firing nato or other +P ammo.
I'd change the mainspring spring if it were mine. They are available from Wolf Gunsprings.com.
Always use gloves and eye protection when firing.
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03man(Don Voigt); Luger student and collector.
Looking for DWM side plate: 69 ; Dreyse 1907 pistol K.S. Gendarmerie
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