well here it is from what i have been able to glean and what appealed to me looking at it:
i love the wood in this thing as i saw it and the split pup looked interesting mounted there. i think i have always wanted to put a split P in Gibby wood but just couldn't bring myself to do it.
internet searching Hohner basses proved to be fruitless so far or at best pretty skimpy.
Hohner started marketing fretted instruments in the 70's because harmonica sales were not cutting it anymore. i did notice that now they market acoustic fretted instruments along with Steinberger licensed basses. interesting! anyways, after calling Larry Briggs in Oklahoma, a semi local knowledgeable vintage guitar man, he told me Hohner contracted to a Japan company (Matsumoku) and possibly later a Korean company (Samick) to make thier instruments. after a bit more describing the instrument to him, he told me the bass was possibly pre 1980 and yes it would probably be real or Sapella Mahogany but all the trim would be Japanese or Korean ... as in pups and hardware but it could be Korean if made at a later date. he could not give me model numbers or any technical info. he also told me they were not a high end instrument but more of a middle of the lot offering. i had noticed that by the looks of the cheap tuners that look original. not a high collectors valued instrument but maybe a lot of fun.