Hi, I will revive this zombie.
I've got an opportunity to buy Hohner JJ Professional bass, but I found internet to be not very helpful in search for some more details about the bass. She has obviously maple/maple neck and unknown body with flame maple top (maybe just a veneer), two jazz pickups labeled Hohner, gold hardware and no visible serial number (maybe on neck plate, but can't be sure).
Can anyone tell me what is this? Here are some pictures of actual bass: