An Ordinary guy

Your sister birthday is coming up and you still having got ha present. Luckily for you a neighbor is having a garage sale. The neighbor having the sale is an old guy that was a great explorer in his youth is now moving into a retirement home. He probalily has at least one thing that your sister will like an if not you can always get something for yourself. THen you see it the perfect gift for your sister a old looking neckless that has a big N in the center. So you decied to buy it from the old man.