As you can see from that list, Hohner produced a vast number of guitar models over the years. The list makes no claim to completeness. If the instrument you mention carries a Hohner logo and is a headless bass then it will presumably be authentic.
FYI in 1985 Hohner acquired the exclusive license from Ned Steinberger to build several headless models using his designs. The basses in particular are highly prized today and always offered good value for money.
I’ve asked Hohner Service if they can provide more info and will post here when I have a reply.