Hello I just purchased old bass from the dealer. It has Carved top with medium grain Spuce and solid maple side. However its back is Plywood. Its neck is Eb neck made by bitch wood and Ebony Fingerboard. It seems to be German bass for me. It has some oil finish. That is no label or any hint to identify. But the dealer told me that he took this bass form retired musician. Now it is in the process of restoration. Dose someone familiar with this kind of bass? Could you help me to identify it? Thank you in advance.