An antique chair by The B.L. Marble Chair Company. Don't really know to much about it, but I would like to know more. It has to metal plates on it. One says The B.L. Marble Chair Company and the other is what I believe is a serial number. It says B-6525. I think it's green leather and maybe an oak wood. Again, I'm not sure. Please help. I would also like to know what it's worth.