Need info about a swap meet find today. It is a portable "Primaphone" phonograph, marked "Primaphone, Bombay." The first thing that I thought (okay, the second thing) was that it was some sort of Indian Frankenphone, however it appears to be quite old and well made. The entire thing folds up into a nifty wooden box that measures about 7 by 8 by 9 inches. The reproducer looks almost identical to a Victor Exhibition, only the rubber flange on the back is held on by three screws and it is marked "Excelsior Primaphone Swiss Make." It plays 78s, works, and is amazingly loud. Sounds really good, actually. It appears to be all original, the only flaw being that the wooden base under the tonearm is loose and a pivot for the tone arm looks to have been replaced. The motor is marked "T. Horens - Swiss Made." See photos.
What the heck is this thing?

Thanks -- Mike