Enormous Chinese cloisonne water jug on stand with dragons 4 characters to base

  

Enormous Chinese cloisonne water jug with dragons on stand 4 characters to base. 32 cms tall, 13 cms across the top.

Though I think of this as a water jug, I would never use it as such, it is a nice thing for a dry flower jug, though it is also just a stunning piece of cloisonné with three fine dragons and large characters at the neck. The handle appears to be some sort of stork or similar. On the base there are four characters that I haven't made out. I don't know how old it is, but I'm guessing it is more than a hundred years old. Any information about its origins would be gratefully received.

There are some patches of enamel inside that appear to be missing. It feels good all over, I can't feel any irregularities or dents or problems with the enamel or cloisons.