So do I! It does rather remind me of some work by Peill & Putzler.
Bedlam, could you go over it very, very carefully - around the base on the outside of the vase, to see if there is a tiny mark which looks as if it's made from two letter P's, back to back, sharing the main stem of the letter?
The P&P mark is often very hard to find and not always on the base of the piece!