I recently had an old Adam full splice stolen along with a case that looks exactly like the one in your pic! The cue played great and I loved the case enough to repair it several times because the ends came loose. I think it was a cheap import case, but it was small enough to carry easily, and would fit resting on the front passenger seat of my truck without bothering a passenger. It would easily hold a 30" shaft.
These old Helmstetter and Adam cues are under appreciated by many, hence the low price. Great find and a good buy!