Hi, so a few years ago someone I know gave me what I think is a marimba. I have never even seen someone play the marimba, so I kind of just fool around with it (I don't even have mallets). I'm thinking of selling it, but I have no idea what it's worth. There's no name clearly visible anywhere, and it doesn't have those pipes on the bottom. If I posted pictures, would someone be able to help me determine its value?