A man once called his son and told him that he would give him something extraordinary, something extremely valuable. From within a safety wall, he pulled out a red velvet box and gently opened it. Inside the box was an old watch. As he handed the watch over to his son the man said, this watch is very special. It has come down to us over three generations and is at least over 200 years old. You can use it. You can keep it as a memoir or just sell it and get money to buy whatever you like.