need history of luger

the luger menu links under Heller arms. listed under lister pistols for sale the one gun shown at the top left. I need to know some history on this item as a friend has the same gun and wants to sell it to me. The serial # is 979 and it looks like all the parts at match, could someone give me a ballpark price and if this is a luger to own, I'm a newbie to lugers