Please take a look and give me your thoughts

[tackkjr]

My grandfather was in WW2 and was ambushed in Berlin by a Russian squad. His group killed all the Russians and took this pistol off of one of the Russians. I'm looking for a value of the weapon for insurance purposes....it's never going to be for sale and will always be in our family.

Can you please help me with:
1. Estimated value
2. Should I look for a holster (don't have one) and another clip that matches to increase the value
3. Should I fire this or just keep in the safe as a family collectible item
4. Does the clip match the gun?

http://s258.photobucket.com/user/tac...w/WWII%20Luger

Thanks in advance for your help and thoughts.