Well if he kept it a while then it must be really worth something.....
Plus if you can find so rich person they will pay thousands for something as the value is in the pocket of the buyer. Get it! No good if a poor person says it worth something if they can not afford to buy it.
My father passed away and I am wondering if anyone has seen or knows about a chess set like this?
http://s1292.photobucket.com/albums/b562/gretchenisanangel/?¤t=null_zps7e3763ca.jpg&evt=user_media_share