Questions about my Luger.

No I do not plan on selling this, but I am wondering what the value of it is.

it is a 1906 imperial navy luger (not commercial) all matching numbers (3288) and a matching stock. 2 ww1 mags, and a 6 inch barrel. Rifling is perfect, and everything is still in great working condition.. My grandmother gave it to me for christmas, and until then it had been sitting in a box for about 35-40 years.