Identify acoustic hohner

Hello, I have a acoustic Hohner guitar and was wondering if anyone could help in identifying the year and possibly how much it could go for. The sticker on the inside is circular and model no is HGJPP.

With respect, a better photo would help. Also some details about the guitar, such as is the top solid or plywood. What is the fingerboard made of and are the tuning posts open or closed. Is it electric or not.

Outside of a few early models, most Hohner guitars do not have high resale value. Mostly, they are valuable to their owners for their inherent quality (build, sound, etc). Often buying a second hand Hohner guitar is a good bargain for those who know guitars.