My Great-Grandfather's 30 Luger

[Bucknut]

The photos below are from my great-grandfather’s 30 Luger which just inherited. I have always had a fascination with Lugers since I was a boy and never thought I'd own one. I've done some research and I was hoping to get some more information from some of you.

It has all of the markings of a Commercial Luger with Germany stamped below the barrel and the bottom of the magazine, upright Crown N proof and lack of too many other distinguishing markings. It's in relatively great shape. If I had to guess I'd say that the bluing is in the 95% range and the straw is around 90%. It has only been shot a couple of times since the mid 1960s. The only noticeable damage to is the broken base on the magazine (photo 2) the chip missing from the one grip (picture 4). I've had the gun given a cursory examination by a local gunsmith who told me that it was safe to shoot. Would you shoot it? Also can anyone tell me it's approximate value for insurance purposes? Is there any significance to the fact that it has two different script Ns stamped on it? In general can anyone tell me more about the history of the Luger? I'm a new member to this forum and would love any help I could get.