The mother of toilet seat headstock overlay is a giveaway with no logo. I'm thinking it is a off brand. The tailpiece looks like one you would see on an old off brand. The bridge looks like it is ebony from the pics. Can you tell if the nut and saddle are bone or plastic? If they are bone, it would lead in another direction. Is the binding painted on or is it plastic. If it is plastic how many ply is it, i.e. Black white black white? These are all things to gather worth.