Hi. I was wondering if anyone could give me an estimate on what this guitar could be worth. I’m posting this for my father who isn’t very computer savy so any quesstions you have I’ll have to ask him. Here is the information we have on the guitar. It’s a Gibson Marauder. The number on the guitar is 72769588ydddy and the date on it is October 3, 1979. Any information you can provide is greatly appreciated.