http://www.antique-shop.com/forums/index.php?topic=19382.0

Here is the link to the antique-shop forum so you can follow it !! Not many ideas yet !! I am going to PM a member in the UK and ask him to look at it !! He may know who`s mark it is !!

Yes I can see how it would be difficult to read !! I cross posted this mark to another forum to see if anyone knows the mark !! Will post a link to the other forum tomorrow !!
Hopefully someone will know what it is !!
Can you please give the size of the vase ?? And what is in the center ?? Looks like a stopper of some kind !!

the second pic:

Here some other pics. It’s very difficult to take picture of the mark. It’s hard to read even if you have the vase in your own hands.

Really need to see the mark myself !! Can you try to take a closer pic looking straight at it !! And please make sure the pic is right side up when you post it please ?? This pic of the mark is upside down !!