In surprisingly good condition with only a few visible stains - see photos please, they're quite minimal.
This octagon shape isn't perfect, but I think that speaks to its handmade quality.
I would think the characters are Chinese - I could be wrong.
It's subtle and sophisticated, and a good size.
It isn't terribly stiff(it is somewhat stiff), but not floppy. It lies perfectly flat.
Probably has not been used a whole, given the very good condition.