Anita's comments are pretty much what has been on my mind when I see these come up on ebay,
from the pics its so difficult to be absolutely sure, think of paying such a sum to discover its a modern repro'
the chinese examples I have seen have been poor in my estimate.
from a picture for the sums these pieces make, its a bold buy in my opinion,
better luck for the future, I hope you get your piece in the end.