Hi there,
I'm really sorry that I can offer no insight at all into what these are/where they originated from/how old they are, but I was hoping that somebody else might have a clue to offer. I did contact an dealer in oriental antiques, but as yet have received no reply.
I don't really know much about art, much less oriental art, but these are a set of four 'paintings' and appear to be possibly Japanese in origin. They do not fall under my typical taste in art, yet I find them strangely compelling, perhaps because they appear to be something that has been crafted rather than mass-produced (obviously I could be completely wrong there!)
Although I said they are paintings, part of them is kind of done in relief work, mainly the characters, rocks/some foliage and the roofs of the buildings. I don't know what material was used for this part of them, some of it feels cold like stone, and other parts like the character's faces look almost like ivory. There appear to be no markings denoting an artist or any other means of identification on either the pictures or the frames/back of the frames (and definitely not 'Made In Taiwan' - they feel and look like they could be quite old)
If anyone has any idea about what these might be, or what type of oriental art they are, so that I could better research them, I'd really appreciate it.
I've linked to some photos below.
Thanks very much for your time