Hi, I have an Ernie Ball Musicman Sterling 4 string. The neck plate is a 5 bolt and has the serial number F09508. I received this bass as a gift from a family friend. It is a gold color with a pearl pick guard. I have no idea what I have here other than it's a Musicman and it is a sterling. So I am curious to know about it - any help would be great!!! Thanks!