Fuji folders and large 6x9 rangefinders. As they are still making the smaller mf folders the big rangefinders are unique and only dated from the 80s.

Any Chinese camera, as that economy is steaming on, over time there maybe a large market of collectors who would want Chinese made cameras because of national heritage, or the handwork that goes into some of them. The large format cameras and medium format slr's and tlrs such as from seagull.

There is already a large collectors market in china for art and luxury goods, outside of china strong national brands such as seagull have a small market of collectors for other items such as watches of the higher calibers or kitsch design . This could be the same for cameras in time such as Russian cameras.