Hi
I hope you can help with an identification for this beautiful (IMHO) vase.
Being a complete novice, I have done as much research as I can and come up with four possibles

I hope one of them is right and would love to hear your opinions please.
the vase is quite heavy and is definitely not fine thin glass, but has a fabulous 'ping' (I know, that means nothing but I like it nonetheless

)
The base is 4 1/2 inches in diameter.
Height is 7 3/4inches
the bowl bit is not circular but oval - 6 inches wide by 5 1/2 inches back to front.
There are 4 vertical trails, two front and two back, with the 'swags' (7 on each quarter) inbetween them.
It appears to me to be beautifully made, but actually I wouldn't have a clue. The trails go right down to the bottom of the bowl bit and underneath it, then it is joined to the knop (is that the ball bit on the stem) which is clear as is the foot apart from right around the rim of the foot which has the same trail colour around it.
The pontil - please forgive my explanation and I hope it isn't too wrong here- is snapped off, and polished as in whitefriars, but is not perfectly round and has two sort of line marks on the edge of the round bit. It's kind of been polished to make it not sharp, but not perfectly if that makes sense?
Any thoughts at all would be very much appreciated. And thank you all in advance for your consideration.
M